In Afghanistan, at least four people have been killed and 20 wounded in a suicide bombing attack outside a Shiite mosque in the capital Kabul. Police officer Abdul Rahman said the attacker blew himself up on the street about 1,000 meters from the Hussainia Mosque.<br/><br/>The attack took place just after today prayers as worshippers were on their way home. A witness said the attacker was disguised as a sheepherder. No one immediately claimed responsibility for the attack.<br/><br/>In another incident, a Taliban attack on a police checkpoint has left five police dead in western Farah province. Spokesman for the provincial police chief, Iqbal Baher said two others were wounded when the militants launched their attack early today in Bala Bluk district. <br/><br/>Baher said reinforcements from the Afghan national army arrived after several hours of fighting and pushed the Taliban fighters out of the district. He said the Afghan air force struck three Taliban vehicles as they tried to escape, killing at least 20 Taliban fighters. There was no immediate statement from the Taliban.