Theresa May has called together her government ministers to discuss whether the UK should support action by the United States against the country.
The cabinet is expected to support May to join a possible military action by the US and its allies against the Syrian regime without seeking a parliamentary approval.
US President Donald Trump earlier warned Russian Federation of imminent military action in Syria and he lambasted Moscow for standing by Syrian President Bashar al-Assad.
Britain's government weighed the possibility of military action against Syria on Thursday, agreeing the "need to take action" despite polls showing the public remains wary of military intervention.
When asked if she would recall the British parliament, May declined to directly answer the question.
"The chemical weapons attack that took place on Saturday in Douma in Syria was a shocking and barbaric act", May told reporters in the central English city of Birmingham.
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A separate YouGov survey on Thursday found 61 percent of people think it would be necessary for parliament to vote on military action against Syria, with just 18 percent saying it was not necessary and 21 percent undecided.
The allies want to prevent a repeat of an apparent chemical attack in Douma.
The mission was only allowed after approval by MPs - they backed military action in Iraq in September 2014, and in Syria a year later, strictly limiting strikes to IS targets.
"There is no proof that the Assad regime is responsible for the chemical attack on civilians".
Corbyn has also evoked memories of the Iraq War, when lawmakers approved joining in the face of strong public opposition.
May is not obliged to win parliament's approval, but a non-binding constitutional convention to do so has been established since a 2003 vote on joining the USA -led invasion of Iraq. The Downing Street statement did not mention parliament, and a spokeswoman did not comment on those reports.
Other members of May's Conservative party have urged restraint in a highly fraught situation.