A mortuary attendant at Murtala Mohammed Specialists Hospital said at least 10 bodies had been brought in from the scene. He spoke on condition of anonymity because he was not authorized to speak to reporters.
Witness Kolade Ade said at least one blast appeared to come from a Mercedes-Benz parked beside a kiosk selling alcohol and soft drinks.
"After the first bomb, I threw myself into the canal (drain) to hide. There were at least three blasts," he said.
The explosions came as hundreds of people thronged the area in Sabon Gari neighborhood, where some were playing snooker and others table tennis.