A man armed with a grenade escaped arrest on Thursday and took a senior Ukrainian policeman hostage in the central city of Poltava, a government minister said.
A man who said he was armed with weapons and explosives seized a bus in the western Ukrainian city of Lutsk on Tuesday and took a number of people on board hostage, police said.
Police in Lutsk, western Ukraine have set up a large police cordon in response to an armed man who has taken around 20 hostages on a bus today (July 21).
Footage shows the perimeter that has been..