Syria has strongly condemned a decision by France and Britain to supply arms to foreign-backed militants fighting against the government of President Bashar al-Assad.
Damascus on Thursday called the decision “a flagrant violation of international law.”
The condemnation came after French Foreign Minister Laurent Fabius said that France and the UK would consider arming the Syrian militants even if it meant breaking an EU ban.
Speaking on France Info radio, he said the two countries shared "identical views" over lifting the arms embargo on the foreign-backed militants.
He said they would press for EU talks on the embargo to be brought forward, because of the situation's urgency.
The UK has played down the remarks - but said earlier it might veto a forthcoming vote to extend the embargo.
Many countries are concerned that pouring more arms into Syria could escalate the crisis that hit the country since March 2011.
Human rights monitors said in a report on Thursday that the terrorists routinely kill captured soldiers and people loyal to Syrian government.
On Wednesday, Russian Foreign Minister Sergey Lavrov warned that arming Syria's militants would be a breach of international law.
Media reports say militants in Syria have been receiving arms from a number of Western countries at the expense of Saudi Arabia. Qatar and Turkey are also aiding the armed gangs in Syria.