Army Captain Emmanuel Garcia, head of a military security task force, said an unidentified man threw the grenade into the crowd at a park in the city of General Santos on Mindanao island late Wednesday.

“At least 22 people are wounded in the grenade explosion and they have been rushed to hospitals,” he said.No one has claimed responsibility and Garcia said authorities were investigating.

Yet another attack on a “soft target,” in a non-ARMM city (Manny Pacquiao’s hometown), is deeply worrying.