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.

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 defences on Friday repelled an attack by four drones flying towards Moscow, with no injuries reported in the capital or in an earlier attack on an oil complex in one of Russia’s southern regions.

Ceasefire efforts come at a time when Ukraine is fast losing ground on the battlefield amid a freeze in US military aid and intelligence sharing

"The air defense forces repelled an attack by four drones heading toward Moscow," he wrote. "Emergency service specialists are working at the sites where debris fell." Read also: Drone attack hits Moscow suburbs,