Kabul, Afghanistan ? Bomb attacks on U.S.-led forces killed two coalition soldiers and wounded four in eastern Afghanistan on Tuesday. An Afghan interpreter was also injured.

Afghanistan has suffered a spate of suicide bombings in the past 10 months, but most have been in southern provinces, where remnants of the former Taliban regime are strongest. More than 400 people, mostly militants, died in fighting last month as more NATO forces prepared to deploy to the south.

On Tuesday, a roadside bomb struck a military vehicle conducting security operations in Nangarhar province, killing two coalition soldiers, said Lt. Khrysten Darm, a U.S. military spokeswoman. She said one soldier and one Afghan interpreter were wounded but would not disclose the nationalities of the soldiers.

Earlier in the day, a suicide car bomb hit a military convoy, wounding three U.S. soldiers in eastern Afghanistan’s Khost province, along the mountainous border with Pakistan, a military statement said.