BOGOTA, March 6 (Xinhuanet) -- Nine people were killed and 20 others wounded in a grenade attack on a dance party at a town in southwest Colombia, authorities said Sunday.

    The grenade was thrown into a group of 300 people around midnight Saturday at a school in the town of Cajibio in Cauca province.

    Cajibio major Absalon Charo said the incident was under investigation and the authorities are looking for two minors who might be responsible for the attack.

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