Yemeni officials said Saudi airstrikes targeting a military base on Tuesday hit a nearby school, injuring at least a half dozen students.

The negotiations are seen as a crucial effort to use diplomatic means to try to ensure Tehran isn't able to move toward building a nuclear bomb. "‎We've made enough progress in the last days to merit staying until Wednesday. There are several difficult issues still remaining,"‎ U.S. State Department spokeswoman Marie Harf said.

Why did Andreas Lubitz turn the jetliner's nose downward, sending it plunging into the French Alps and killing all 150 people aboard? Did he plan his actions? What drove the German national to do that? Those questions and more remained unanswered after the Tuesday crash of Germanwings Flight 9525 headed from Barcelona, Spain, to Dusseldorf, Germany.

Man suspected of terrorism on a United flight from Washington to Denver was detained after the plane had to return after the passenger rushed the cockpit yelling 'jihad, jihad, jihad'