Nigeria abductions: Military admits girls still missing

Nigeria's military has admitted that most of the teenage girls abducted by suspected Islamist militants have not been freed as it earlier stated.

There has been confusion about the number of girls missing after they were kidnapped from a boarding school in the north-east on Monday night.

A teacher told the BBC that while some of the girls had escaped many were still being held by the militant group thought to be Boko Haram.

The Nigerian authorities needed to do more in its attempts at rescuing the girls, the teacher said.

Will Ross reports.