Kabul , Afghanistan ( CNN ) -- Eight service members were killed in three separate attacks in Afghanistan on Saturday , NATO officials said . In one attack , a roadside bomb killed five U.S. service members in southern Afghanistan , U.S. and NATO officials said . The blast killed took place in the Maiwand district of Kandahar province , said the governor 's spokesman , Javid Faisal . The Taliban claimed responsibility for the attack . Taliban spokesman Zabihullah Mujahid told CNN that 10 soldiers were killed in the blast , though the group is known for exaggerating the number of casualties . In a second attack Saturday , two members of NATO 's International Security Assistance Force were killed when an Afghan soldier turned his weapon on them , according to an ISAF statement . The incident in western Afghanistan is under investigation , ISAF said . The nationalities of those killed were not immediately released . And in a third incident , one ISAF service member died after an insurgent attack in northern Afghanistan , ISAF said . No other details about the attack were released . CNN 's Chris Lawrence and Sara Mazloumsaki contributed to this report .
5 U.S. service members are killed by a roadside bomb in southern Afghanistan . The Taliban claims responsibility for the roadside bombing . ISAF : 2 members were killed when an Afghan soldier turned his weapon on him . - May 4, 2010 :