Western countries blame the Syrian government for the alleged chemical weapons attack on April 7, in which 40 people were killed.
Three Belgian companies have been accused by Belgian Customs authorities of exporting chemicals to Syria without a proper export license.
Alaa, a civil society worker who has been in Damascus since the start of the conflict, weighs in on the impact of U.S. and Russian foreign intervention in Syria and the perception of civilians on the ground.
Chemical weapons' usage in Syria clearly required an immediate and forceful response, but the handling of the aftermath of the targeted chemical assassination attempt on Sergei and Yulia Skripal continues to pose a long-term challenge for the British government.
Chemical weapons experts have finally been given permission to enter Douma on Wednesday after Western alliance accused Russia of blocking access
Saturday’s missile strike on Syria may temporarily deter the Syrian government from using chemical weapons but it will not alter the trajectory of the seven-year-long war, experts say.
The Western alliance air strikes on Syria's alleged chemical weapon sites have been widely condemned across the country
Syrians chanted pro-government slogans and waved Syrian flags showing solidarity to the Syrian Presidency.
As Moscow and Washington traded threats of retaliation over an alleged chemical attack in Syria, where do other countries stand on a military response?
As tensions increase over the suspected chemical weapons attack in Syria, the Kremlin spokesman Dmitry Peskov has urged against 'any steps which could lead to an escalation of tensions.'
Britain prepares to join military response to a suspected chemical weapons attack in Syria as the PM seeks cabinet backing
The Kremlin submitted a resolution to the United Nations Security Council proposing that the Organisation for the Prohibition of Chemical Weapons investigates the alleged chemical attack in Douma in Syria over the weekend.
The US has vowed to respond to an alleged deadly chemical weapons attack in Syria regardless of whether the UN Security Council acts or not, while Russia has warned Washington of "grave repercussions".
Meanwhile, Russia's Ambassador to the EU Vladimir Chizhov appeared to backtrack on previous suggestions that the nerve agent used in the UK attack could have come from a British laboratory.
The following is a summary of an interview given by Dr Michelle Carlin, senior lecturer in forensic and analytical chemistry at Northumbria University.
Below is a transcript of a statement by British prime minister Theresa May to parliament on the subject of Russian involvement in a chemical attack on two people in the town of Salisbury.
Medics report a chlorine gas attack in Eastern Ghouta, just hours after an aid convoy left the area.
Damascus denies using chemical weapons but a UN investigation says North Korea shipped equipment that could have been converted