More than 100 female students have been abducted by suspected Islamist insurgents in a raid on a secondary school in Nigeria’s northeast Borno state.

Gunmen thought to be members of Boko Haram carried off the teenage girls from the school in Chibok late in Monday night.

The raid took place on the same day as a bomb attack killed at least 75 people on the edge of the capital Abuja.

With elections due next February, President Goodluck Jonathan is under intense pressure to contain the five-year insurgency, which is posing a growing security risk to Africa’s top oil producer.