MOSCOW (Reuters) -Russian air defences repelled an attack by four drones flying towards Moscow, Mayor Sergei Sobyanin said on Friday, with no injuries reported in the capital or in an earlier attack on an oil complex in one of Russia's southern regions.

Ukrainian drones targeted Moscow and the surrounding region around 7:00 a.m. local time on Friday, according to Russian media reports.

Ukraine attacked Moscow with drones overnight the morning after Vladimir Putin rejected a temporary ceasefire mediated by the US. Russian air defences repelled four drones which were flying towards the capital, according to Sergei Sobyanin, the city’s mayor. Mr Sobyanin said there was little damage and no casualties.

The assault, which the mayor called the largest on Russia’s capital since the war began, was a reminder of Ukraine’s power to strike as its president proposes an air truce.

Kiev’s latest attack comes after a US envoy’s visit to discuss ceasefire talks proposed by Washington. Moscow has repelled another Ukrainian drone attack, just days after the Russian capital was targeted in a major multi-wave raid involving over 90 UAVs that killed three civilians,

Russian air defenses shot down over 300 Ukrainian drones over 10 Russian regions overnight, military officials said Tuesday, in what appeared to be the biggest Ukrainian drone attack on Russia in the three-year war.

Ukraine targeted Moscow early on Tuesday in what seemed its biggest drone attack of the war on the Russian capital, killing at least one person, sparking fires and suspending air and train transport in the region,