Russia sent a warning to the West yesterday, saying there should be no unilateral intervention in Syria.
The message came a day after Barack Obama said any attempt by the Assad regime to use chemical weapons could trigger US intervention.
The Russian Foreign Minister Sergei Lavrov said countries should "strictly adhere to the norms of international law". The warning came a day after a Japanese journalist was killed in the Syrian city of Aleppo.
Mika Yamamoto worked for The Japan Press. She was hit by gunfire on Monday while she and a colleague were travelling with the Free Syrian Army. Two other journalists, Bashar Fahmi, a Palestinian reporter for the US government-funded broadcaster Al-Hurra, and Cuneyt Unal, a Turkish cameraman for the station, were also reported missing.