Security forces said an anonymous tip-off led them to the site which is almost the size of a football pitch.

安全力量表示，一份匿名密报引导他们来到这里，整个场地像足球场那么大。

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The corpses had been covered with soil, rubbish and animal bones when investigators unearthed the site, after receiving a tip-off from a survivor of a mass execution at the pit.

CNN: Bodies unearthed at Bosnian pit