Suspected Al Shabaab militants on Wednesday killed three people traveling in a passenger bus at Nyongoro area, Lamu county.
The militants left one person with a gun shot wound.
The incident took place along the Lamu-Garsen highway at around 3 pm.
According to witnesses the gunmen shot at the bus while hiding behind bushes before the police escorts came to their rescue.
The passenger bus way traveling from Mombasa to Kipini.
The county has been on a dawn to dusk curfew for the past few months.