On Monday, four persons were killed on the Lagos-Ibadan expressway when a luxury bus rammed into a truck.
Three other persons sustained varying degrees of injuries in the accident.
Florence Okpe, Federal Road Safety Corps spokeswoman, in Ogun, confirmed the incident in Abeokuta.
She said the truck did not stop after the bus rammed into it while negotiating a bend around the Kara axis on the expressway.
Ms Okpe also said 21 people, 13 men and eight women, were involved in the crash.
She said the corpses were deposited at a morgue in Sagamu in Ogun, while the injured were taken to a nearby hospital.
