Helicopters 'disrupt' Crimean Tatar rally

In Crimea, military helicopters have flown over Simferopol and Bakhchisaray, where several thousand Tatars had gathered to mark the 70th anniversary of the deportation of Crimean Tatars.

Russia annexed Ukraine's mainly ethnic Russian region of Crimea in March.

Oleg Boldyrev reports on events in Simferopol.