At least 11 people have been killed in separate attacks in Afghanistan.
A man blew himself up at a provincial police headquarters in southeastern Afghanistan, killing three people and wounding eight others.
The incident involved two attackers, disguised as police officers, who approached the gates of the main police office in Khost and opened fire on police guards.
Officers returned fire, killing one attacker, and the second blew himself up.
Separately, a police convoy on the Kandahar-Kabul road was hit by gunfire and rocket propelled grenades from an unknown number of insurgents in the Shahr-e-Safa district of southern Zabul province. Six police were killed in the ambush.
Taliban rebels also attacked a private road construction company in the southeast of the country, killing an Afghan and a Filipino worker and wounding four others.
