Saudi monarch King Salman has congratulated Donald Trump for his "courageous decision" to carry out a missile strike on a Syria airbase.
The strikes were ordered by the US President in retaliation for an alleged chemical weapons attack in Syria, which has been blamed on the country's government.
The official Saudi Press Agency reported that Salman spoke to the US president by telephone on Friday.
Saudi Arabia said the missile launch by Mr Trump was the right response to "the crimes of this regime to its people in light of the failure of the international community to stop it".
The kingdom is among the most vehement opponents of Syrian president Bashar al-Assad and supports Sunni rebel groups fighting to oust him.
The Sunni rulers of Saudi Arabia are engaged in a power struggle for regional dominance with Iran's Shia government, and view Tehran's support of Mr Assad as a threat to the region.
Boris Johnson looks "daft" and is in "deep political trouble" after pulling out of a meeting with the Russians, Alex Salmond has said.
The defence secretary condemned Vladimir Putin's Kremlin for its role in Bashar Assad's suspected chemical weapons attack on his own people.
The leading critic of the Trump administration has told ITV News the US and its allies must build on the president's justified airstrikes.