Khan, during the conversation on Monday night with the Crown Prince, who is also known as MBS, vowed to support Saudi Arabia against any terrorist attack and reiterated that Islamabad will stand by the Kingdom in case of any threat to the sanctity or security of the Arab nation, Geo News reported.
Earlier on Monday, a Saudi-led coalition said that the attack on two Saudi oil facilities that triggered the biggest jump in oil prices in almost 30 years was carried out with Iranian weapons, as US President Donald Trump said Washington was "locked and loaded" to hit back.
The rebel Houthi group that controls Yemen's capital claimed responsibility for the strike which knocked out more than half of Saudi Arabia's oil production and damaged the world's biggest crude processing plant.
Iran denied the accusations that it was behind the attack.
UN Yemen envoy Martin Griffiths told the Security Council on Monday it was "not entirely clear" who was behind the strike but he said it had increased the chances of a regional conflict.
But US Ambassador to the world body, Kelly Craft, told the Council that emerging information on the incident "indicates that responsibility lies with Iran".
There was no evidence the attack came from Yemen, she added.
( With inputs from IANS )