The U.S. Treasury has sanctioned 271 Syrians after a sarin gas attack on civilians earlier this month.
Treasury Secretary Steven Mnuchin said the employees targeted by the sanctions work in chemistry-related fields or have been working "in support of chemical weapons programs since at least 2012."
At a press briefing Monday, he said, "OFAC [Office of Foreign Assets Control] is sanctioning 271 employees of Syria's Scientific Studies and Research Center, the Syrian government agency responsible for developing and producing nonconventional weapons and means to deliver them."
"In a single action, we are more than doubling the number of individuals and entities sanctioned since the start of the Syrian conflict pursuant to Syria-related executive orders," Mnuchin said.
These are just the latest actions taken by the Trump administration after the deadly attack believed to be carried out by Syrian President Bashar al-Assad's regime.
Just a few days after the attack, President Trump ordered the launch of 59 Tomahawk missiles targeting a Syrian airfield.
The U.S., with the United Kingdom and France, drafted a resolution condemning the Syrian regime and seeking an investigation into the attack. But Russia blocked the passage of the resolution in the United Nations Security Council.