At least seven police officers have been killed and 17 are missing after an attack in Kenya, reports say.
The officers were ambushed by local tribesmen in Turkana County during a security operation on Friday.
Those missing include police reservists. Local newspaper Standard Digital says a military helicopter has been dispatched to look for them.
Turkana, in the country's north, is the poorest county in Kenya and its second largest.
Sources within the local police force told Kenyan radio station Capital FM that "the ground is still volatile" and the inspector general of police has been told not to visit.
Last week local newspapers reported that five people, including some police officers, had been killed close to where Friday's attacks occurred.