Roadside bomb kills 3 U.S. service members in Afghanistan

FRESNO, Calif. (KFSN) -- Three International Security Assistance Force (ISAF) service members and one ISAF canine died following an improvised explosive device attack in southern Afghanistan on Friday.

The alliance says the three were killed along with a military dog on Friday. It didn't give more details about the location or nature of the attack. ABC News has confirmed that all three service members were U.S. nationals.

-----

The Associated Press and ABC News contributed to this report.