Abyei Residents Vote on Whether to Join Sudan or South Sudan

Pakistani soldiers transport rescued school children from the site of an attack by Taliban gunmen on a school in Peshawar, Dec. 16, 2014.

A man waves a South Sudanese flag as he celebrates referendum results in the town of Abyei, Oct. 31, 2013.

Fans of Argentina's River Plate celebrate before the Copa Sudamericana soccer match finals against Colombia's Atletico Nacional in Buenos Aires, Dec. 10, 2014.

A woman inks her finger after voting in a polling station located in a school in Abyei, Oct. 28, 2013.

Women wait to vote inside a polling station located in a school during a referendum in the town of Abyei, Oct. 28, 2013.

A man pours drinking water at a former school near polling station in Abyei, Oct. 28, 2013.

A man waits inside a mosquito tent in a school to vote near a polling station during a referendum in Abyei, Oct. 27, 2013.

Men wait to vote at a school during a referendum in the town of Abyei, Oct. 27, 2013.

Voters wait in line to cast their vote, as others have their fingers dipped in ink to show they have done so, in an abandoned school used as a polling center in the disputed border region of Abyei, Oct. 27, 2013.