An explosion injured three policemen in the Ifo camp of Kenya's Dadaab refugee complex on Thursday night (January 31st), Kenya's The Standard reported.

The officers were driving within the complex when an improvised explosive device hit their vehicle. Police say a barrage of gunfire aimed at the vehicle followed the explosion. The officers are currently in stable condition.

In a separate operation, police following an intelligence tip arrested a man in Dabaab on Thursday who had two grenades in his possession.

North Eastern police boss Charlton Mureithi said security operations in the area have been scaled up to recover weapons intended for use in attacks on police and humanitarian workers.

"We are determined to address this problem but the locals must also co-operate because these criminals are living with them," he said.

In an earlier raid, police shot dead known bandit leader Ibrahim Hassan Ali and recovered an AK-47 rifle, eight magazines and a jungle uniform. His accomplices, however, managed to escape.

Dadaab and its environs have witnessed numerous attacks on security personnel since the Kenya Defence Forces entered Somalia in October 2011.