Six people were last evening injured after a grenade exploded in California estate in Nairobi. Preliminary investigations by the police indicated that the explosion was caused by an improvised explosive device which was planted on the ground.

The injured were rushed to different hospitals in Nairobi for treatment. The incident happened at around 7.30 pm. A senior detective told the Star that criminal could have planted the explosive under some loose sand along the estate road. The road is under construction.

Last month Three people were were injured when an explosion rocked a busy bridge along Eastleigh's 1st avenue road as residents were going to work.

Three people were yesterday morning injured when an explosion rocked a busy bridge along Eastleigh's 1st avenue road as residents were going to work.