The ISSG meeting, which started late on Thursday, lasted for several hours and saw the participation of Russia, the United States and over a dozen other states. The talks resulted in the adoption of a final communique that calls for humanitarian access to be provided swiftly to all besieged areas in Syria and sets a one-week deadline for measures to be implemented to end the hostilities in Syria.
"We obviously welcome the agreement that was made two nights ago, we are very pleased and prudently optimistic about it, hoping that it will work. Because that is now the major flow of migrants and refugees to Europe who are being forced to leave," Swing said.
Syria has been in a state of civil war since 2011, with the army loyal to President Bashar Assad fighting several opposition factions and militant organizations, including Islamic State, which is banned in Russia and a number of other countries.
According to the UN refugee agency, 13.5 million Syrians are displaced inside the conflict-torn Arab republic, while about 4.6 million people fled the country, triggering a massive refugee crisis in the European Union.