Still from video posted on internet by men claiming to be Syrian rebels
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Men claiming to be Syrian rebels 'hold' UN Golan team

About 20 UN observers have been detained by about 30 armed fighters in the Golan Heights on the Syria-Israel border, the UN has confirmed.

A video posted on the internet showed men claiming to be Syrian rebels standing next to vehicles with the letters "UN" written on them.

The UN said the observers were monitoring a ceasefire between Syria and Israel. A team is being despatched from the UN mission to assess the situation.

BBC Arabic's Edgard Jallad explained what the people in the video were saying.

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