MOSCOW/KYIV –  Japan has contributed to the killing of Russian civilians through its cooperation with Ukrainian drone developers, further worsening bilateral relations, Russian Deputy Foreign Minister Andrey Rudenko said on Saturday.

"Given Ukraine's systematic terrorist provocations using UAVs against civilian targets on Russian territory, we qualify such cooperation with the Kyiv regime as an openly hostile action. Ukrainian drones are killing Russian civilians, and Tokyo is helping them do so," Rudenko said in an interview with TASS news agency.

He added that Japan's deepening involvement in the Russia-Ukraine conflict is further eroding the already strained Russia-Japan relations.

Meanwhile, one person was killed and 61 were injured in a Ukrainian drone attack on Russia's Moscow region, regional governor Andrei Vorobyov said Saturday in an update posted on social media.

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Vorobyov said that 20 of the injured received outpatient treatment and did not require hospitalization. Another nine people remain in serious condition, while 31 are in moderate condition.

All are under medical supervision and are receiving necessary treatment. Most of the victims suffered shrapnel and blast injuries, traumatic brain injuries, fractures, burns and smoke inhalation.

Vorobyov said the city of Elektrostal, about 60 kilometers east of Moscow, was the hardest hit, with 57 people injured, while four others were wounded in Noginsk.

Earlier on Saturday, Vorobyov said that 24 people had been injured after a drone crashed onto the premises of a warehouse in Elektrostal.

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Also on Saturday, the Russian Ministry of Defense said in a statement that air defense systems have shot down 774 Ukrainian fixed-wing drones and 13 guided aerial bombs over the past 24 hours.

The ministry said Russian forces had carried out another overnight round of strikes using air-launched precision-guided weapons and attack drones against Ukrainian military-related targets.

It said the strikes hit port infrastructure at the Port of Odesa used for unloading fuel and lubricants, as well as fuel storage facilities intended to support the Ukrainian armed forces.

The ministry added that a container ship unloading ammunition at the Port of Chornomorsk in Ukraine's Odesa region was also struck. Russian forces also targeted a dry cargo vessel near Snake Island in the Black Sea that was transporting supplies for the Ukrainian military.

1 killed, 13 injured in Russian missile raid on Kyiv

In Kyiv, at least one person was killed and 13 others injured early Sunday in a Russian missile attack, said Ukrainian authorities.

The overnight strike hit facilities and sparked fires in five of the capital's 10 districts, according to the State Service for Emergencies.

Several buildings, including an office building and a dormitory, along with vehicles, were damaged in the attack.

As of Sunday morning, rescue was still underway.