"Allies reiterate their support for UN-led efforts to achieve a lasting political resolution to the conflict that is consistent with UNSCR 2254 (2015) and the Geneva Communique (2012) and call on all members of the UN Security Council to uphold their responsibilities," Stoltenberg told reporters.
The official added that the members of the military alliance called on all the supporters of Damascus, particularly Moscow, to "exercise responsibility" to ensure the constructive participation of Syrian authorities in the UN-led reconciliation process.
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The Syrian government has called the US-led strike a result of the West realizing that it had lost control of the conflict, while Russian President Vladimir Putin slammed the attack as an "act of aggression" against a country, which is combating terrorism on its soil.
READ MORE: Assad: US-Led Attack Comes as West Realizes It's Lost Control of Syrian Conflict
Damascus has rejected all the allegations, noting that all chemical stockpiles were destroyed, which was confirmed by the OPCW. No evidence of Damascus' involvement in the reported chemical incident was presented, with a probe due to start on April 14.