Syrian rebels capture a group of men loyal to President Bashar al-Assad in Golan Heights Syria.

"Grovel and keep silent," they say. "These are Bashar's dogs."

The video, obtained from a social media website, cannot be confirmed by Reuters.

As the civil war rages on, the question of whether President Bashar al-Assad's regime has used chemical weapons, or if the rebels have, is now a major talking point.

Washington has long said that evidence of the use of chemical weapons was a qoute red line that would prompt the US to take action.

Turkish Prime Minister Recep Tayyip Erdogan said it's been al-Assad regime who've fired missiles with chemical weapons at the rebels.

During an interview with NBC news, he made clear his view.

(SOUNDBITE) (English) NBC CORRESPONDENT, ANN CURRY, SAYING:

"Has President Assad crossed President Obama's red line?"

A long time ago, he said.