The five died when the suspected Shabaab militants raided neighbouring police camps in Lafey town in Mandera County in northeastern Kenya.
"We had an attack this morning and we have lost four officers," said regional commissioner Mohamud Saleh, adding a reservist had also been killed.
"A security operation is ongoing in the area," he added.
The area's communication mast was also destroyed before the attackers escaped towards the nearby border with Somalia.
"We suspect Al-Shabaab involvement," said Saleh.
Mandera suffered a spate of Shabaab bombings and attacks last year.
Disclaimer: No Business Standard Journalist was involved in creation of this content