A suspected al Shabaab roadside bomb killed four people and injured 11 in northeast Kenya on Friday, a senior government official said.
The incident came as the latest one of a series of such attacks. Last month, at least eight police officers were killed in two roadside bombings in the area, with al Shabaab militants based in neighbouring Somalia claiming responsibility.
Early on Friday a public service vehicle was blown up by an improvised explosive device (IED) between Fino and Sheikh Barow, Mandera County Commissioner Frederick Shisia said.
"A (Toyota) Land Cruiser which was carrying about 15 people ran over an IED. It exploded, killing four instantly, and injured 11," he said.
Among the casualties were two local leaders. "One chief died and another got seriously injured," Shisia said.
"We suspect it is al Shabaab militants, as they are the ones who are behind planting of IEDs in the area."
Al Shabaab, fighting to overthrow Somalia's government says it will continue to attack Kenya until it withdraws its troops from an African Union peacekeeping mission in Somalia.