Seven people, including three children, have been killed in a bomb attack near a school in northwestern Pakistan.
Earlier reports said the adult victims were journalists or aid workers, but authorities now say they were three US soldiers and a Pakistani soldier.
The attack in the Lower Dir district is reported to have left more than 40 other people wounded.
Police say the roof of the school collapsed and some people were trapped inside.
The blast happened near Swat Valley, an area the army had largely cleared of militants in a crackdown nearly a year ago.
The explosion is said to have been triggered by a remote-controlled device.