Afghan men carrying one of the injured
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UN staff killed during protest in northern Afghanistan

1 April 2011 Last updated at 19:55 BST

At least eight foreign UN workers and four others have been killed in an attack on a UN compound in the Afghan city of Mazar-e Sharif, officials say.

The violence happened during a protest over the burning of the Koran in a US church last month.

Witnesses said hundreds of people were protesting peacefully in the city when the scene suddenly turned violent.

Paul Wood reports.