Nigeria, Aug. 12 -- The Nigerian Army has issued an advisory for all soldiers to tread carefully anywhere they sight police officers in the coming weeks.

The directive comes as anger intensified over the killing of police officers in Taraba last week.

The officers were on a covert operation to nab a suspected kidnap kingpin when soldiers from 93 Battalion suddenly opened fire on them, killing three officers and a civilian on the spot.

The suspect was also set free by the soldiers in the August 6 incident.

The police identified the suspect as Hamisu Wadume, expressing grave disappointment that soldiers would set free a man that had been on detectives' radar for several years before they finally had a chance to take him into custody.

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