There was pandemonium in Oyo State on Tuesday evening after a bomb exploded at the Abolongo correctional facility in the town.

The explosion comes barely few days after unknown gunmen stormed the prison and freed the inmates.

It was gathered that the bomb which exploded was one of those planted by the gunmen during the Friday attack which refused to go off.

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However, no casualties have been recorded and security operatives have paid a visit to the scene to assess the extent of the damage.