It was gathered that the driver of an 18-seater white coloured Toyota Hiace passenger bus heading to Lagos had a head-on collision with a white DAF Volvo trailer.
Six passengers who survived the accident which happened around 7:00am sustained varying degrees of injuries.
An eyewitness said the driver of the bus was overspeeding while plying one-way.
The Sector Commander of the Federal Road Safety Corps (FRSC), Kwara State, Jonathan Owoade, confirmed the development.
He attributed the cause of the accident to speeding limit and route violations and loss of control.
“Twelve of the passengers were burnt beyond recognition.
“We are still at the University of Ilorin Teaching Hospital (UITH) trying to sort out the process of depositing them at the morgue.
“But those injured have been taken to the hospital for treatment,” Commander Owoade added.