A senior Ukrainian security officer was gunned down in a residential parking lot in Kyiv on Thursday before his assailant fled on foot in broad daylight, according to authorities and video footage verified by Reuters.

Hundreds of Russian drones and more than a dozen missiles rained down on the Ukrainian capital early on Thursday, killing two people in a second massive air strike on Ukraine in two days as Kyiv seeks critical aid from its partners at a meeting in Rome.

Russia launched more aerial attacks on Ukraine in June than in any other month of the war so far, causing a record number of civilian casualties.

Russia launched a series of drone and missile attacks on the Ukrainian capital overnight, triggering air defences in central Kiev and injuring at least two people, authorities said early on Thursday.