Russia-Ukraine war live: Zelenskiy says army has asked for up to 500,000 more troops to be mobilised — as it happened

Ukraine's president is speaking to the world's media at an end-of-year press conference

Russian air defences downed a hostile drone near Moscow on Tuesday, the city mayor, Sergei Sobyanin, has said. No casualties were reported.

Two Moscow airports, Vnukovo and Domodedovo, had restricted flights, a measure often taken during drone attacks.