In this image grab taken from a broadcast by Syria TV on June 28, 2021, smoke billowing from a facility used by Iran-backed groups following US air strikes on the Syrian-Iraqi border. Rocket fire targeted a US military base in Syria's eastern province of Deir al-Zour at night on July 4, 2021, the state news agency SANA reported. (SYRIA TV / AFP)

DAMASCUS - Rocket fire targeted a US military base in Syria's eastern province of Deir al-Zour on Sunday night, the state news agency SANA reported.

The shelling targeted the base in the al-Omar oil field in eastern countryside of Deir al-Zour, SANA reported.

The Syrian Observatory for Human Rights said the rockets, which it identified as "Iranian-made," were fired from the city of al-Mayadeen in the countryside of Deir al-Zour. It added that the rockets exploded inside the base

It added that US warplanes flew over the area after ground troops closed it off.

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The Syrian Observatory for Human Rights said the rockets, which it identified as "Iranian-made," were fired from the city of al-Mayadeen in the countryside of Deir al-Zour. It added that the rockets exploded inside the base.

The observatory noted that the US forces didn't respond to the fire.

However, the US-led coalition spokesperson Wayne Marotto denied any attack against US forces in Syria.

"There is no truth to the reports that US forces in Syria were attacked by rockets today," he said.

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On June 28, an attack by pro-Iran fighters targeted the same base located in the same region near the Syrian-Iraqi border.