A wedding in Afghanistan turned deadly Sunday night when a gunfight broke out, killing 21 people, an Afghan official said. The shootout took place between two armed groups during the wedding in the northeastern province of Baghlan, Interior Ministry spokesman Sediq Sediqqi said, CNN reported. Two teenage boys were among the 21 killed, he said. Another eight people were wounded. The cause of the gun battle wasn't immediately clear. Sediqqi said the Interior Ministry has ordered police in Baghlan to search for those involved.