Speaking from the Oval Office Wednesday afternoon, President Trump called the chemical weapons attack on civilians yesterday in Syria "unspeakable" as he welcomed King Abdullah of Jordan to the White House.

"I just wanted to thank our friends, our great friends. These are very troubled times in the Middle East and we see what happened just recently, yesterday in Syria. A horrible, horrible thing, unspeakable," Trump said.

MOMENTS AGO: @POTUS meets with Jordan's King Abdullah II in Oval Office, calls chemical attack in Syria "unspeakable." pic.twitter.com/sBE7XCXoKT — Fox News (@FoxNews) April 5, 2017

Just moments before Abdullah arrived at the White House, UN Ambassador Nikki Haley spoke before the UN Security Counsel and warned that without real action in response to the use of chemical weapons, it will happen again.

"We know that yesterday's attack was a new low, even for Assad's regime," Haley said. "We saw rows of lifeless bodies, some still in diapers, some with visible scars of a chemical weapons attack."

"We know that if nothing is done, these attacks will continue," Haley said. "The truth is that Assad, Russia, and Iran have no interest in peace."

WATCH: U.S. Ambassador to the U.N. @nikkihaley addresses Security Council on Syria attack. pic.twitter.com/LeKSOZyA7d — Fox News (@FoxNews) April 5, 2017

Last week Haley said the administration has moved away from the position Syrian President Bashir al-Assad should be removed from power.

Defense Secretary James Mattis is hinting at a response greater than words. This is the third time chemical weapons have been used against Syria's civilians.