Emergency services and rescue workers rush to the scene of a collapsed building in Lagos.<br /><br />In the video, hundreds of locals anxiously watch on as the rescue workers attempt to pull out pupils trapped by the debris.<br /><br />Rescue efforts at the three-storey building are expected to continue into the night. <br /><br />More than 40 people have been rescued so far. It is not known how many have died.<br /><br />A primary school was on the top floor of the building.
