Police say the attacker protect targeted a military convoy, setting off a huge blast in a crowded market square in Shangla district.

VOA: standard.2009.10.12

And they close off the square and just allow the public into certain bits of it

那时，他们会封闭广场，只允许公众去特定的区域，

关于莱斯特广场 - SpeakingMax英语口语达人

In an alley off the square, a group of thirty something down-and-outs squabble.

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He was struggling to get the ball off the square and after crawling to 11 from 23 deliveries, it was almost a blessed relief when he holed out on the cover-point boundary.

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Later that evening, using secret cameras, we were outside a bar off the main square in a town with a population of 8000 Turks.

BBC