Meanwhile, the Pentagon has said that USA strikes in Syria overnight had successfully hit every target and were aimed to deliver an unambiguous signal to the Syrian government and deter the future use of chemical weapons.
Corbyn later wrote to May seeking assurance that there would be no further bombing raids and urged the government to negotiate a pause in the Syrian civil war.
"It was right to take the action that we have done in the timing that we have done", she said.
"Last Saturday the Assad regime again deployed chemical weapons to slaughter innocent civilians, this time in the town of Douma near the Syrian capital of Damascus".
Other opposition leaders joined in the criticism.
7 inmates dead, 17 injured in Lee Correctional Institution riot
Lee County Fire & Rescue says multiple agencies were called into assist with the "mass-casualty incident" at the prison. In March, inmates at the prison held an officer hostage after taking control of a dorm room, The State reported.
Over 100 missiles were fired on the morning of Saturday, April 14, targeting what representatives of coalition forces called chemical weapons sites in retaliation for an earlier poison gas attack.
"We have sought to use every possible diplomatic channel to achieve this", the prime minister said.
May said she would address parliament on Monday about the strikes.
May is not obliged to win parliament's approval before ordering military action, but a non-binding constitutional convention to do so has been established since a 2003 vote on joining the USA -led invasion of Iraq. France, the USA and the United Kingdom have circulated a joint draft resolution on Syria at the UN Security Council that denounces the use of chemical weapons there and demands the establishment of an independent mechanism for investigating such incidents, AFP reported on Saturday evening.
The Green Party, which has one MP, said May had "trampled over parliamentary democracy" and demanded a vote in the House of Commons on the strikes.
Trading halted at Woolworths stores across Australia
SBS journalist Lydia Feng said she was shopping at a Woolworths in Balmain, in Sydney's inner west, when the registers went down. Shoppers began reporting on social media about 4.15pm that they'd been told an IT issue was affecting cash registers.
DUP leader Arlene Foster said the airstrikes were "limited but proportionate and justified".
Peter Felstead, editor of Jane's Defence Weekly, said he did not think May would face a "serious backlash", as the strikes ultimately were politically and operationally "the right thing to do".
Prime Minister Justin Trudeau said in a statement that Canada stands with its allies and that it supports the decision " to take action to degrade the Assad regime's ability to launch chemical weapons attacks against its own people".
"If the West had acted against Assad's chemical weapons attacks in 2013, we might not have had to embark on military action now".
This is what the next Xiaomi Android One smartphone could look like
On its release date, the Xiaomi Black Shark will only be made available in China, the home country of the phone manufacturer. The official teaser has also confirmed that the smartphone will sport a dual camera setup with a 20-megapixel sensor.