JERUSALEM/CAIRO/TEHERAN/BRUSSELS/MOSCOW - Countries hosting Hamas leaders or other groups regarded by Israel as enemies could themselves become targets if they failed to act against the groups, Israeli Prime Minister Benjamin Netanyahu warned Wednesday, a day after Israel's Doha strike that drew swift and broad international condemnation.

"I say to Qatar and all nations who harbor terrorists, you either expel them or you bring them to justice ... because if you don't, we will," Netanyahu said in a video statement.

Israel has not released details on the outcome of its airstrike in Doha on Tuesday that targeted a building used by senior Hamas officials in what Israeli authorities described as an attempt to assassinate leaders of the group who were "directly responsible for" the attack on Oct 7, 2023 that left about 1,200 people dead.

Hamas said Tuesday that the strike occurred while its delegation was discussing a new ceasefire proposal presented by Washington. According to the group, the negotiating team survived, but six others were killed.

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On Wednesday, Israel's state-owned Kan TV reported that estimates were growing the attack has failed to hit its intended targets.

Qatar has vowed to adopt a "comprehensive" approach to respond to the Israeli strike and deter future attacks, noting that the country will not tolerate any violations of its sovereignty.

Israel vows to pursue Hamas leaders

On Wednesday, the Israeli military struck another multistory building in Gaza City, as Israeli officials vowed to continue targeting Hamas leaders even if Tuesday's airstrike in Qatar failed to kill them.

The military expanded its offensive in the city, home to nearly 1 million people. Photos showed the Tayba II Tower, a residential building near the Rimal neighborhood, reduced to rubble after the attack.

The military confirmed it had struck the building, claiming Hamas had installed intelligence-gathering equipment there.

It was the latest in a series of high-rise towers, many sheltering displaced families, hit in recent days. Israel says Hamas mounted surveillance cameras on the buildings to monitor troop movements.

Residents were given less than an hour's warning before the strike, with Avichay Adraee, a military spokesman, urging their evacuation in a post in Arabic on the social media platform X.

At least 41 people were killed across Gaza on Wednesday, bringing the total death toll in the enclave to 64,656 since October 2023, Gaza-based health authorities said.

Defense Minister Israel Katz said Tuesday's attempted assassination of senior Hamas figures in Qatar was part of an operation dubbed "Fire Summit" aimed at killing the group's top leadership. "Israel's security policy is clear: Israel's long arm will act against its enemies everywhere. There is no place for them to hide," he said.

Katz said Israel will continue to pursue all Hamas members involved in the attack on Oct 7, 2023, that left about 1,200 people dead. He warned that unless Hamas accepted Israel's conditions for ending the war - which he said were primarily the release of all hostages and disarmament - "they will be destroyed and Gaza will be destroyed."

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Regional countries renew condemnation

Meanwhile, regional countries reaffirmed their condemnation on Israel's Doha strike, and voiced their support for and solidarity with Qatar.

During a phone call on Tuesday night, Iranian President Masoud Pezeshkian and Qatari Emir Sheikh Tamim bin Hamad Al Thani condemned Israel's attack on Hamas leaders in Doha.

Pezeshkian said Iran stands with Qatar and would take any necessary action to support its "neighbor and close friend".

He said Israel respects no recognized international framework or global legal norms, and its modus operandi was backed by the United States.

Pezeshkian called on Muslim countries to adopt a "united" position and seriously condemn Israel's "blatant aggression and crime" both verbally and in action to prevent a repeat.

The Qatari emir, for his part, agreed with the Iranian president, noting that Netanyahu knows no boundaries for his "crimes" and would attack and bomb wherever he wanted and however he wanted, without facing any obstacles.

Sheikh Abdullah bin Zayed Al Nahyan, deputy prime minister and foreign minister of the United Arab Emirates (UAE), said in a meeting with Egyptian Foreign Minister Badr Abdelatty in Abu Dhabi that the UAE backs all measures Qatar may take to safeguard its security and safety.

Respecting national sovereignty is a cornerstone of international relations, and any violation constitutes a blatant breach of international law and the UN Charter, he was quoted as saying by a statement released by the UAE Foreign Ministry, urging global actions in halting "Israeli aggressions".

In a phone call on Wednesday between Egyptian President Abdel-Fattah al-Sisi and Kuwaiti Emir Sheikh Meshal Al-Ahmad Al-Jaber Al-Sabah, the two leaders voiced "full solidarity" with Qatar, and called the Israeli strike an unacceptable encroachment on Qatar's sovereignty.

They "expressed their categorical condemnation of this assault, considering it a flagrant violation of international law and the UN Charter", the Egyptian presidency said in a statement.

During his meeting with Palestinian President Mahmoud Abbas in Amman on Wednesday, Jordan's King Abdullah II condemned the Israeli Doha strike, rejected Israeli plans to expand control over Gaza and settlement activity in the West Bank, stressed the need for a ceasefire in Gaza and unhindered humanitarian access, and for implementing the two-state solution, according to a Royal Court statement.

Iranian Foreign Minister Seyed Abbas Araghchi, in a phone call on Wednesday with his Qatari counterpart Mohammed bin Abdulrahman bin Jassim Al Thani, condemned Israel's "terrorist aggression" against Qatar, and voiced Iran's solidarity with and support for Qatar.

Given Israel's "ongoing genocide in Gaza, frequent aggressions and terrorist actions against Lebanon, Syria and Yemen, criminal attack against Iran and now military aggression against Qatar," Israel has become a "real and immediate threat" to regional and global peace and security, Araghchi said.

Condemning the "treacherous and vicious attack" in Doha, the Tunisian Foreign Ministry in a statement on Wednesday voiced full solidarity with and support for Qatar and its efforts to defend its national sovereignty, territorial integrity, and security.

Algeria's official APS news agency reported Wednesday that Algeria has made a request together with Qatar to hold an urgent meeting of the UN Security Council on the "Israeli aggression" on Qatar.

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Europe steps up condemnation

The European Union and the United Nations, as well as several European governments, have also hardened their stance on Israel's escalating military campaign across the Middle East after it launched airstrikes on Qatar.

On Tuesday, UN Secretary-General Antonio Guterres called it a "flagrant violation" of Qatari sovereignty, while the EU Foreign Affairs spokesperson Anouar El Anouni said it violated "international law and Qatar's territorial integrity, and risks a further escalation of violence in the region".

Spain, so far, has issued its strongest condemnation of Israel yet. Within hours of the Doha raid, the Spanish government approved a decree formalizing its arms embargo, banning ships carrying weapons or fuel to Israel from docking at Spanish ports and Israeli defense aircraft from Spanish airspace, and stepping up humanitarian aid to Gaza. Spain also barred Israeli Finance Minister Bezalel Smotrich and National Security Minister Itamar Ben-Gvir from entering Spanish territory.

A day earlier, Spanish Prime Minister Pedro Sanchez had previewed the measures in a televised address, calling them "a necessary step to alleviate Palestinian suffering". He said Spain was determined to lead Europe's response.

Several other European countries have joined Spain in denouncing Israel's military action against Qatar. Norwegian Foreign Minister Espen Barth Eide described it as "a serious violation of international law." British Prime Minister Keir Starmer condemned the strike in talks with NATO Secretary General Mark Rutte. German Foreign Minister Johann Wadephul called Israel's attack "unacceptable" and warned that it jeopardizes the negotiations for the release of hostages held by Hamas. The Slovenian Foreign Ministry condemned the attack on social media, expressing solidarity with Qatar.

Portugal's Ministry of Foreign Affairs said on social media platform X on Tuesday night that the attack violates Qatar's sovereignty and risks further escalating violence: "We stress that an immediate ceasefire and release of hostages are urgent. A two-state solution remains crucial for lasting peace," it added.

Meanwhile, the UN has stepped up its criticism of Israel's ongoing military campaign in Gaza, with High Commissioner for Human Rights Volker Turk telling the Human Rights Council on Monday that he was "horrified by the open use of genocidal rhetoric" by Israeli officials.

On Wednesday, European Commission President Ursula von der Leyen also hardened Europe's stance against Israel. "What is happening in Gaza has shaken the conscience of the world. Man-made famine can never be a weapon of war. This must stop," she said at a Plenary session of the European Parliament in Strasbourg, northern France.

Russia also condemned Israel's Tuesday attack on Doha as a gross violation of international law and the UN Charter.

"Russia views the incident as a gross violation of international law and the United Nations Charter," Russia's foreign ministry said in a statement, calling the attack a threat to stability in the Middle East.