The UN Security Council will hold an emergency meeting on Monday, April 9, to discuss reports on chemical weapons attack in Syria.

"UK, France, U.S., Poland, Netherlands, Sweden, Kuwait, Peru and Cote d'Ivore have called an emergency meeting of UNSC. Meeting expected on Monday," The United Kingdom Mission to the United Nations tweeted on April 8.

Read alsoRussian warplane bombs refugee camp in Syria's Idlib – mediaSeveral medical, monitoring and activist groups reported details of a suspected chemical attack in Douma, the last rebel-held town in Syria's Eastern Ghouta, but figures vary and details of what happened are still emerging, BBC wrote.

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The U.S. state department said reports suggested "a potentially high number of casualties", including families in shelters.

The pro-opposition Ghouta Media Center tweeted that more than 75 people had "suffocated", while a further 1,000 people had suffered the effects of the alleged attack.

It blamed a barrel bomb allegedly dropped by a helicopter which it said contained Sarin, a toxic nerve agent.

There were reports of people being treated for symptoms including convulsions and foaming of the mouth, consistent with nerve or mixed nerve and chlorine gas exposure.

Syria's government has called the allegations of a chemical attack a "fabrication".