Russia has struck a Ukrainian drone and missile factory overnight as attacks near Kyiv killed three people, including a child.

Moscow’s defence ministry claimed it targeted the Kyiv-11 Fire Point plant, the Ukrainian defence company developing long-range weapons, including the Flamingo cruise missile.

Three people, including a child, were also killed and seven injured in Russian ballistic missile strikes on Kyiv region’s Brovary district.

Volodymyr Zelensky, the Ukrainian president, said the child was a three-year-old boy, and that his grandparents had been also killed in the strike.

Tymur Tkachenko, Kyiv’s regional governor, said the attack damaged a residential building, cars and outbuildings in the Brovary district and caused a fire at a non-residential building.

Video footage showed explosions and plumes of smoke rising from buildings.

“Russia continues to terrorise the civilian population,” Mr Tkachenko said in a Telegram post, adding that emergency crews were battling fires at a fuel tank in the capital.

Moscow also claimed to hit a fuel facility in Kyiv which its defence ministry said supplies petroleum to the Ukrainian armed forces.

Ukraine’s State Emergency Service said fires broke out at two garages and a commercial building in the Holosiivskyi district.

Another fire was extinguished “on the territory of an enterprise” in the Obolonskyi district, it added.

A drone also entered Bulgarian airspace and exploded near the village of Kardam.

No casualties or damage occurred after the drone detonated in a sunflower field near the Romanian border, Rumen Radev, the Bulgarian prime minister, said.

The explosion site was 1km from a Bulgarian compressor station on the Trans-Balkan gas pipeline, which stretches from Turkey to Ukraine, and 200m from the Romanian compressor station.

Germany and other European countries have reported an increase of drones linked to the Russia-Ukraine war flying over sensitive sites such as airports, military bases and industrial plants.

On Tuesday, Russia was blamed after an explosive drone found near a Ukrainian cargo plane forced the shutdown of an airport in Germany.

US intelligence has warned that Moscow could attack a Nato country within weeks to test the alliance’s resolve.

Meanwhile, a Russian oil refinery caught fire after it was struck by Ukrainian drones in the southern Krasnodar region, injuring five people.

The Ilsky refinery has been repeatedly targeted by Ukraine throughout the conflict as Kyiv continues its campaign against Russian energy infrastructure.

Video footage showed flames and thick plumes of smoke rising from the refinery.

Ukrainian drones also targeted an industrial facility in Russia’s Samara region, the regional government said.

Russia’s defence ministry said air defences intercepted and destroyed 397 Ukrainian drones overnight.

Moscow also said it hit two Ukrainian cargo ships “carrying weapons and military equipment” east of Odesa.

Russia has been launching increasing numbers of ballistic missiles at Kyiv as Ukraine grapples with a perilous shortage of missile interceptors.

In an attack on the city earlier this week that left 17 people dead, not a single Russian missile was intercepted.

Only 29 of the 195 missiles launched by Russia in July were intercepted.

On Friday, Russia also struck a Ukrainian football stadium in Odesa.

The attack hit the 34,000-seater Chornomorets Stadium and destroyed the roof, windows, and stands, according to Ukraine’s State Emergency Service.

A 29-year-old woman was injured with shrapnel wounds, Oleh Kiper, Odesa’s regional governor, said.

The attack came a day before a Ukrainian Premier League game between Chornomorets and Kolos. No official announcement has yet been made on whether the fixture will go ahead.

The stadium hosted Uefa competition matches before Vladimir Putin launched Russia’s full-scale invasion in 2022, as well as international fixtures involving Ukraine’s national team.

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The latest strikes came as Mr Zelensky arrived in Belgrade for talks with Aleksandar Vučić, the Serbian president.

The Ukrainian president is expected to discuss economic ties, security and Serbia’s relationship with the EU as he seeks to build wider international support for Kyiv.

Mr Vučić has maintained close ties with Moscow and has refused to impose sanctions on Russia.

In a statement after the strikes, Mr Zelensky said: “Europe, America, and Ukraine have long wanted to stop this Russian war. Only Putin doesn’t want to, and he’s desperately clinging to his ballistic missiles and drones to keep the war going.”

On Friday, the US senate passed a bill on a sanctions package targeting Russia’s energy revenues.

The legislation, backed historically by the late senator Lindsey Graham, introduces up to 100 per cent tariffs on major nations importing Russian oil and gas.