21.   Three paramilitary were injured when the grenade went off.

22.   Two children were killed and two other relatives were injured when a hand grenade went off in Ho Chi Minh City, local police said Friday.

23.   The ministry statement did not say whether the grenades went off accidentally or were hurled into the crowd.

24.   The statement gave no details of what the political rally was about and did not specify whether the grenades went off accidentally or were hurled into the crowd.

25.   While they were toying with it, the grenade went off.

26.   Nor did the statement say whether the grenades went off accidentally or were hurled into the crowd.

27.   Organizers had just crowned the winner of a beauty contest when the grenade went off.

28.   The couple and another female friend were in the car when the grenade went off, but the two women were only slightly injured, media reports said.

29.   The grenade apparently went off while being manipulated by the hostel inmates.