Six police officers have been killed in separate attacks in southern Afghanistan.
Local official Omar Zwak said at least two police were killed and five wounded when a suicide car bomber hit a convoy on February 3 in Lashkar Gah, the capital of the southern province of Helmand.
The Taliban claimed responsibility for the attack.
In the southern province of Oruzgan, police official Gulab Khan said four police were killed and three wounded on February 2 when dozens of Taliban militants attacked their outposts in Charcheno district.
There was no immediate claim of responsibility.
Taliban fighters have stepped up their attacks since U.S. and NATO forces formally ended their combat mission at the end of 2014, with Afghan troops taking charge of the country's security.
About 12,000 Western troops, mostly from the United States, remain in Afghanistan.