State buildings in a number of towns have been occupied by pro-Russian gunmen, a move which Kiev says is an act of aggression from Moscow.

In Slovyansk, armed men have opened fire as they seized a police headquarters and security service building.

And in Donetsk, where they declared a people's republic last week, armed men have taken over a police headquarters.

Al Jazeera's Kim Vinnell reports from Donetsk.

Source: Al Jazeera