Regional police spokesman Vyacheslav Gasanov said the bomber blew herself up Monday in the central village of Gubden in Dagestan. He said the bomber tried to enter a local police station, but was stopped by a police patrol.
Dagestan is the largest province of the predominantly Muslim Northern Caucasus region and is beset by almost daily violence that stems from two separatist wars in neighboring Chechnya.
Also Monday, a suspected Islamic militant was killed in a shootout with security forces outside Dagestan's capital, Makhachkala. Gasanov said two policemen were wounded during the shootout.