"Saudi Arabia fully supports the US military operations against military targets in Syria, which were a response to the regime's use of chemical weapons against innocent civilians," a foreign ministry official told the state SPA news agency.
The official said the regime had only itself to blame after "odious crimes it had committed for years against the Syrian people."
He described US President Donald Trump as "courageous" for taking action when "the international community has failed to put a halt to the regime's actions."
There had been international outrage over Tuesday's suspected attack that killed dozens of civilians but Moscow stood by its Damascus ally and warned of the negative consequences of any military action
As a result, a UN Security Council debate on a Western-drafted resolution that would have sanctioned the Syrian regime was again delayed on Thursday amid Russian insistence that the chemical weapons that caused the deaths had been stockpiled by jihadists on the ground and released by a conventional strike.