"A short time ago, I ordered the United States Armed Forces to launch precision strikes on targets associated with the chemical weapons capabilities of Syrian dictator Bashar al-Assad", Trump said in a televised address from the White House.
"The use of chemical weapons is unacceptable, and those responsible must be held accountable", he added.
"Allies expressed their full support for this action meant to degrade the Syrian regime's chemical weapons capability and deter further chemical weapon attacks against the people of Syria", Stoltenberg said.
'The objective of the meeting is for France, United Kingdom and the United States to update the Council on the latest developments in Syria, ' it said in a statement.
Meanwhile, UN Secretary-General Antonio Guterres has urged the members of the organisation to show moderation in the prevailing "dangerous" climate and to respect global law.
GETTYSyria news Analysts claim Syrian policy is currently run by the Russians and Iranians
"I urge all member states to act responsibly in these unsafe circumstances", Guterres said.
Stoltenberg will give a press briefing after the meeting. Chemical weapons can not be used with impunity.
North Atlantic Treaty Organisation believes that the US-led military action in Syria will not threaten the political settlement in the Middle Eastern country, Stoltenberg said.
Saudi Arabia on April 14 expressed its full support for USA -led strikes on Syrian government military installations, saying they were a response to "regime crimes" against civilians.
On April 7, the volunteer organizations reported that the chemical attack at Douma, the East Ghouta took place.
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