Odessa deaths spark Ukraine protests

Pro-Russian activists have attacked the police headquarters in Ukraine's southern city of Odessa, forcing the release of several people held over deadly violence two days ago.

Friday's clashes led to more than 40 deaths. Most victims were pro-Russian separatists killed when the building they were in caught fire.

Other cities in the east of Ukraine have also escalated their calls for allegiance for Russia, as Fergal Keane reports.