Russian Fighter Jets Invade Ukraine's Air Space, US Warships Deployed To Western Side Of Black Sea facing the Russians

KIEV, March 3 (Reuters) - Russian fighter jets twice violated Ukraine's air space over the Black Sea during the night, Interfax news agency quoted the Defence Ministry as saying on Monday.

It said Ukraine's air force had scrambled a Sukhoi SU-27 interceptor aircraft and prevented any "provocative actions" but gave no further details.

Earlier on Saturday March 1, Moscow staged their first attack on a Ukraine military installation in Crimea, while completing their takeover of the region and its severance from Ukraine.