A building containing a primary school has collapsed in the Nigerian city of Lagos, with pupils feared to be among the dead and injured.

A private school is said to have been on the top floor of the three-storey building in Ita Faji.

Local media are reporting that the building is also used for residential purposes. 

Associated Press video from the scene showed at least one dust-covered child being carried out of the rubble.

People were crowded around the scene in the densely populated neighbourhood in Lagos, Nigeria's commercial capital.

They cheered as the child was lifted out.