The death toll from a school massacre in Nigeria by suspected Boko Haram Islamists on Tuesday has risen to 43, a hospital source in the troubled northeastern Yobe state said.

"Ambulances have been bringing in bodies from Federal Government College in (the town of Buni Yadi," a senior medical source at the Sani Abacha Specialist Hospital in Yobe's capital Damaturu told AFP. "So far 43 bodies have been brought and are lying at the morgue," he said, requesting anonymity as he was not authorised to discuss death tolls. (AFP)