Ukraine crisis: Naval bases seized in Crimea

Ukraine is drawing up plans to withdraw its soldiers and their families from Crimea, Kiev's security chief has said.

Earlier, pro-Russian forces seized two naval bases - including Ukraine navy's HQ - in Crimea. Kiev says its navy chief has been detained.

It comes a day after Crimean leaders signed a treaty with Moscow absorbing the peninsula into Russia.

John Simpson reports from Sevastopol.