Suspected grenade attack on Kenyan bus kills four - police

NAIROBI (Reuters) - A suspected grenade attack on a minibus in Kenya's capital on Saturday killed at least four people near a Somali-dominated area of the city, police said, an incident that mirrors explosions last year that were blamed on Somali militants.

Last year a series of such attacks in and around the Eastleigh area of Nairobi were blamed on Somalia's al Shabaab Islamist group. The group staged an assault on a Nairobi shopping mall in September this year that killed 67 people.