Updated

Authorities in Ukraine say government forces have reclaimed a television tower during a security operation to quell pro-Russian rebel activity in the eastern town of Kramatorsk.

Interior Minister Arsen Avakov said in a statement on his Facebook page that a new assault to reclaim control over the town by the National Guard and armed forces began at dawn on Sunday.

The city saw a standoff Saturday that culminated in insurgents setting buses alight to ward off attacks. Russian state television has reported 10 deaths, including two among government forces, during clashes in Kramatorsk so far.

Efforts to counteract the insurgency have focused mostly on the nearby town of Slovyansk; authorities are currently seeking to form a security cordon around that city.