Onasa news agency quoted witnesses as saying the youths tossed the hand grenade to each other before it exploded in the hands of one of them . bosnia is awash with illegal weapons left over from the 1992 - 95 war and tragic incidents are frequent despite several successful campaigns by international peacekeepers and police to get people to hand over illegal weapons 报道说，在经历了1992年到1995年间的战争后，波黑地区有大量武器非法流散于民间，尽管国际维和部队以及当地警方先后进行了几次成功的武器回收行动，使当地居民交出了大量非法持有的武器，但此类悲剧事件仍然频繁发生。
