The official said 12 passengers were trapped in the bus.

Seven passengers died on Sunday after a commercial bus went up in flames at Iyana-Oworo, inward Third Mainland bridge area of Lagos.

Olufemi Osanyintolu-Oke, permanent secretary, Lagos State Emergency Agency (LASEMA), in a statement said that five out of 12 passengers survived the incident.

He said investigation into the incident revealed that it "occurred due to recklessness and overspeeding by the driver which resulted in the fire with 12 passengers trapped.".

A video shared online showed the vehicle burning and the burnt bodies.

"Unfortunately seven victims were burnt to death (four female, two male adults and one male child ) in the bus," the statement read.

"All the remains have been bagged by the Agency's LRT Paramedics, LASAMBUS officials and handed over to SEHMU."

Mr Osanyintolu-Oke, said the survivors include the driver, one male and three female adults who have been "rushed to Gbagada General Hospital while the male adult was attended to by LASAMBUS at the scene."

He said arrangements have been made by officials of the Lagos State Transport Management Agency to evacuate the burnt vehicle from the road.

He added that the road had been partially opened for vehicular activities.