Three people were killed yesterday after suspected al Shabaab militants attacked a passenger bus and a car at Nyongoro area in Witu, Lamu county.

The attack happened along the Lamu- Garsen highway and left four others with serious bullet injuries.

According to the police, the deceased were in a Toyota Rav4 vehicle which was attacked and burnt by the militants.

The bus was on its way from Mombasa to Kipini at about 3.30pm when the militants opened fire from a bush.

When the Rav4, which was few kilometers behind from the bus, reached the area it was attacked and burnt.

Police escorts exchanged fire with the militants forcing them to retreat.

The attack comes days after Nelson Marwa warned that all public and private vehicles plying the Lamu-Mombasa route without armed police escort will be impounded and licences withdrawn.