US officials arrive in Nigeria to join effort to locate abducted schoolgirls

American officials have arrived in Nigeria to help look for more than 200 kidnapped schoolgirls.

Fifty-three girls who escaped a mass kidnapping by Islamic militants have been named by the government of a Nigerian state potentially subjecting the girls to stigma in the conservative society.

Some 276 girls remain missing, and US officials and agents are arriving in Nigeria to help the Nigerian government, which has been widely criticised for not doing enough to find the girls.