Afghan military officials say a roadside bomb blast in the volatile south has killed six Afghan soldiers.
The officials say the incident occurred on Tuesday in the Sangin district in Helmand province.
The blast came just hours after another roadside bombing in neighboring Kandahar province killed three Afghans and two foreigners.
According to local officials, the victims worked for an American security company (USPI) and were killed on the road linking Kandahar with Herat.
Also Tuesday, in the center of Kandahar city, two suicide bombers blew themselves up but there were no other casualties.
The governor of Kandahar province ,Asadullah Khalid blamed the blasts on Taleban militants who have increased attacks in southern Afghanistan in recent months.