KABUL, Afghanistan — At least nine Afghan police officers were killed in attacks by insurgents on checkpoints in three different parts of the country, provincial officials said Wednesday.

Wali Ahmad Sarih, police spokesman in southern Nimroz province, said Taliban fighters attacked a checkpoint late Tuesday, killing four police and wounding two others. He said four insurgents were killed and six wounded in the ensuing gunbattle.

Aziz Ahmad Azizi, spokesman for the governor of southern Kandahar province, reported a similar attack in which the Taliban killed three police and wounded six, also late Tuesday.

Meanwhile, in another attack carried out by insurgents in northern Faryab province, two policemen were killed and two others wounded, said Karim Yuresh, spokesman for the provincial police chief.

Yuresh said Taliban fighters targeted a police checkpoint Tuesday night and the ensuing battle continued till early Wednesday in the Khoja Sabezposh district. Six Taliban insurgents were killed and around 10 others were wounded in the fighting, he said.

The Taliban, who have seized districts across Afghanistan and carry out near-daily attacks, claimed the assault in Kandahar and Faryab, and are known to be active in Nimroz province.