An Afghan official says gunmen have killed at least three people in an attack in western Herat province.

Gelani Farhad, spokesman for the provincial governor in Herat, says the three victims include an employee of a voter registration center and two policemen.

A third policeman was wounded in the attack, which took place late on Sunday night.

No one immediately claimed responsibility for the attack.

Meanwhile, a spokesman says that the Taliban overrun several villages on Monday in the district of Khoja Ghor in northern Takhar province, pushing back the local police.

Sonatullah Timor there were no casualties reported.

Zabihullah Mujahid, the Taliban spokesman, claimed the attacks in Takhar, saying insurgents have pushed near the district center and taken several posts.