Twelve people were wounded in a grenade attack in the southern Philippines late Saturday night, police and news report said.

Police said unidentified men lobbed a grenade around 9:45 p.m. at a crowd attending a Christmas eve mass in Midsayap town, North Cotabato.

Police said the mass was abruptly ended, adding that churchgoers fled the scene after the attack.

Police said the victims suffered minor injuries, except for one who was critically wounded.

No group has claimed responsibility for the attack.

source: Xinhua