An improvised explosive device went off at the Cotabato City plaza Saturday night while a band contest was being held, but no one was injured, police officials said.

Director Felicisimo Khu, head of the PNP Directorate for Integrated Police Operations in Western Mindanao, said the explosion occurred around 9:10 p.m. at the back of the plaza’s stage.

The IED, made of a 60-millimeter ammunition, was placed inside the comfort room, Khu said.

It exploded while the contest, called “Band Digmaan,” was being held, Senior Senior Supt. Roberto Badian, Cotabato City Police director, said.

“Sa comfort room sumabog at matagal nang walang ilaw dun,” Badian added. (John Roson)

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