At least three people reported dead after a suspected grenade attack targets a bus station in central Nairobi.
An explosion at a bus station in the Kenyan capital Nairobi has killed at least three people person and wounded 20 others, the Kenyan police have said.
The AFP news agency reported that police sources said a grenade had been thrown at the Machakos bus station near Nairobi's central business district on Saturday evening.
Nairobi was hit by grenade attacks last year after Kenya sent troops into neighbouring Somalia in October to fight al-Shabab rebels.
During those attacks, grenades were thrown into a bar and another bus station, both not far from the scene of Saturday's attack, killing one person and wounding more than 20.
A Kenyan man arrested shortly afterwards pleaded guilty to the October bus station attack and being a member of al-Shabab.
He was sentenced to life in prison.