~Gunbattle Between Nigerian Police and Assailants Force People to Flee~ Witnesses in northeastern Nigeria say a gunbattle between unknown assailants and police early Saturday had scores of residents in the town of Potiskum fleeing their homes for safety. There are reports of gunfire around a police station and other sections of the town in Yobe State, with unconfirmed reports of casualties. Potiskum is among 15 regions in northern Nigeria where President Goodluck Jonathan declared a state of emergency last week after days of deadly attacks.