The lorry which was right in front of the bus is said to have had a tyre burst. The driver tried to steer it out of the road, but the bus driver could not manage to slow down.
The MSL bus rammed the lorry from behind.
A 14 seater matatu and two other personal cars were also involved in the horrid accident.
The accident has caused heavy traffic jam along the busy highway that has been closed temporarily.
Do you have a story you want told? Do you know of a sensitive story you would like us to get our hands on? Email your news TIPS to email@example.com