JOLO - A loud explosion rocked Jolo past midnight on Friday.
Police said the explosion happened just a few meters away from the Jolo Municipal Police Station downtown.
According to investigators, two unidentified suspects on a motorcycle hurled a grenade near the station. The grenade hit a police vehicle parked near the station, which incurred minor damage.
No one was hurt in the blast, as there were no passersby during the attack.
The police failed to arrest the suspects, who immediately fled the scene.
They are continuing to investigate the incident to determine the motive for the attack, and the identities of the suspects.