Turkish Prime Minister Recep Tayyip Erdogan has reiterated that Turkey would take part in any international coalition against Syria, but has stopped short of saying whether that would include military action.
The United States has launched a multinational military drill involving Patriot missiles and fighter jets in Jordan despite condemnation from Russia.
US set to send a Patriot missile battery and F-16 fighters to Jordan for a military drill and may keep the weapons there to counter the threat posed by Syria's civil war, US officials say.
Jordan is going to deploy missiles near its borders with Syria as US Senate voted in favor of bill that authorizes arming militants in the war-torn country, raising fears of more instability in the region.
Turkish protesters have rallied in the capital, Ankara, to protest against the deployment of NATO Patriot missiles along their country's border with Syria.