27 August 2012 Last updated at 03:25 ET
A helicopter has come down in the Syrian capital, Damascus, Syrian state television says.
A rebel source said insurgents had shot it down. Details are still coming in.
It comes as the uprising against the government of President Bashar al-Assad continues unabated.
At the weekend, Syrian opposition activists said about 200 bodies had been found in the town of Darayya, near Damascus, accusing government troops of a "massacre".
