Police in Brazil say at least nine prisoners have been killed in a riot at a jail in one of it’s central states.

The authorities say the riot began when a group of armed inmates invaded a wing controlled by a rival gang. One of the victims was decapitated.

After a shootout, more than 100 members of both factions escaped. Police say they have managed to regain control.

Some 30 inmates have been re‑arrested. But nearly 80 prisoners remain at large. At least 14 prisoners were injured.