The U.S. military says two U.S. service members have been killed and two others injured when their vehicle was hit by a roadside bomb in southern Afghanistan.

Polls have closed in Afghanistan's presidential election amid widespread complaints of irregularities and pockets of violence from Taliban insurgents, mostly in the south and north of the country.

An Afghan official says that at least 30 civilians have been killed, along with 16 Taliban fighters, as government forces battled the insurgents in Helmand province overnight.

A suicide bomber rammed his car packed with explosives into a bus carrying government employees killing 24 people and wounding 42 others.

The U.S. military says an American soldier has been killed and another wounded by a roadside bomb during an operation in Afghanistan's southern Helmand province.

Armed militants in Afghanistan staged a coordinated assault on a government security agency in the capital Tuesday morning, killing at least 28 people and wounding more than 320.

Activists say government airstrikes on a northwestern Syrian village have killed at least 49 people, including children. 

Ukraine's president says he may terminate a weeklong cease-fire ahead of time because of continuing rebel attacks.

Pro-Russia insurgents have declared independence for the Luhansk region in eastern Ukraine. They read out the declaration at a rally Monday in the city of Luhansk after insurgents said 96% voted Sunday for the region's independence.