YAOUNDE, Cameroon — A French family with four young children kidnapped at gunpoint by Islamic extremists in northern Cameroon was freed after two months of captivity in what the father described as especially harsh conditions following the group's return Friday to safety in the Cameroonian capital.

Cameroonian television showed the family of seven — four children, their parents and their uncle — stepping off an airplane, a man who had grown a thick beard carrying the smallest child. All appeared thin, but walked steadily.

Officials from France and Cameroon offered no details on how the family was freed overnight, and it was not clear whether there were concessions to the kidnappers.