The meeting was held following overnight airstrikes in Syria launched by the United States, with support from France and the United Kingdom, which targeted installations connected to the country’s chemical weapons capabilities.

It was called by Russia which failed to get the other 14 Council members to adopt a resolution condemning the airstrikes.

Speaking prior to the vote on the draft resolution, the Secretary-General urged countries to avoid actions that would escalate the situation in Syria and worsen the suffering of its people.

“As Secretary-General of the United Nations, it is my duty to remind Member States that there is an obligation, particularly when dealing with matters of peace and security, to act consistently with the Charter of the United Nations and with international law in general,” he told ambassadors, echoing a statement issued in the wake of the airstrikes.

“As I did yesterday, I stress the need to avoid the situation from spiraling out of control," he continued, referring to a meeting held on Friday, one of five times the Council met this week to take up the question of Syria.

The US and its allies launched the airstrikes in response to last week’s suspected chemical attack in the Syrian city of Douma.

The World Health Organization (WHO) said its partners reported some 500 people there had exhibited “signs and symptoms consistent with exposure to toxic chemicals.”

“More than 70 people sheltering in basements have reportedly died, with 43 of those deaths related to symptoms consistent with exposure to highly toxic chemicals,” according to an agency statement on Wednesday.

UN partner the Organisation for the Prohibition of Chemical Weapons (OPCW) has dispatched a fact-finding team to the location.

The airstrikes were reportedly limited to three military locations, but the Secretary-General said the UN is unable to independently verify these details or if there were any casualties.

Russian President Vladimir Putin has condemned the airstrikes as “an act of aggression,” the country’s representative informed the Council.

“This is hooliganism in international relations, and not minor hooliganism given that we’re talking about major nuclear powers,”  Ambassador Vassily Nebenzia said.

“Several strikes were conducted against the scientific research centre in Barzeh and Jamraya. Recently, two inspections by the OPCW were conducted with  unimpeded access to all facilities. Experts didn’t find any trace of activity that would contravene the chemical weapons convention. The scientific facilities in Syria are used only for peaceful activity which is aimed at enhancing the effectiveness of the economic activity of Syria.”

US Ambassador Nikki Haley defended the joint operation with France and the UK, expressing confidence that the airstrikes had “crippled” Syria’s chemical weapons programme.

“With yesterday’s military action, our message was crystal clear. The United States of America will not allow the Assad regime to continue to use chemical weapons,” she said.

“Last night, we obliterated the major research facility that it used to assemble weapons of mass murder. I spoke to the President this morning and he said if the Syrian regime uses this poison gas again, the United States is locked and loaded. When our President draws a red line, our President enforces the red line.”

For UK Ambassador Karen Pierce, Syria has presented one of the most serious challenges to international efforts on non-proliferation.

“A State Party has violated the chemical weapons convention, it has defied the Security Council, and it has broken international law . Repeated attempts over several years to hold them to account have been meet with Russian obstruction and resistance. We have repeatedly in this Council attempted to overcome this obstruction, without success.”

The Syrian crisis is now in its eighth year, and is the most serious threat to international peace and security, as the UN chief stated in his briefing.

“In Syria, we see confrontations and proxy wars involving several national armies, a number of armed opposition groups, many national and international militia, foreign fighters from everywhere in the world, and various terrorist organizations,” he said.

The Secretary-General reiterated that there is no military solution to the crisis, only a political one.

French Ambassador François Delattre said the three allies will submit a draft resolution aimed at finding a political solution to the Syrian crisis.

“When it ordered the chemical attack on 7 April, the Syrian regime knew fully what it was doing. Once again, it wanted to test the limit of tolerance of the international community – and it found it,” he said.

“In the face of this attack on the principles and values and the laws underpinning the action of the United Nations, the silence was no longer a solution. We cannot no longer tolerate the trivialization of the use of chemical weapons which presents an immediate danger to the Syrian people and to our collective security.”