Opening the 29th Arab League summit, the king criticised the USA decision to transfer its embassy in Israel to Jerusalem and described "terrorism" as the biggest challenge facing Arab leaders.
King Salman also announced a $150 million donation for the maintenance of Islamic heritage in East Jerusalem..
THERE have been 40 summits of Arab leaders in the last 70 years.
"East Jerusalem is an integral part of the Palestinian territories", he stressed.
Saudi Arabia and allies expressed support for the strikes on Saturday, but Iraq and Lebanon have condemned them.
They will also condemn Iran's interference in the affairs of the Arab states as a stark violation to the worldwide law and will urge Tehran to stop all provocative acts that undermine trust-building efforts and threaten regional stability and security, especially after Iran-backed Houthis escalated firing missiles against Saudi Arabia.
The Saudi decisions reflect the Kingdom's strong support to the Palestinian cause and hopefully would lead to the realization of the dream for an independent Palestine state within the 1967 borders and Eastern Jerusalem as the capital for the future country, said OIC chief.
Kentucky governor apologizes after comments on teacher protests
He added: 'Children were harmed - some physically, some sexually, some were introduced to drugs for the first time'. And after watching the video Sunday, she said, "Seriously?" 'But it still wasn't an apology.
The heads of Arab states will renew their rejection of US President Donald Trump's decision to recognise Jerusalem as the capital of Israel and to relocate the US embassy from Tel Aviv to Jerusalem, slated for May.
Saudi King Salman bin Abdulaziz Al-Saud attends the 29th Arab League Summit in Dhahran, shown in a handout picture released by the Saudi Royal Palace on April. 15, 2018.
Arab ministers at a preliminary meeting in Riyadh on Thursday focused heavily on blocking the move, unanimously condemning Trump's decision.
"We urge the worldwide community to sanction Iran and forbid it to back Houthi terrorists and provide them missiles", the statement said.
The rift between Qatar, Saudi Arabia, the UAE and Bahrain will not be on the summit's agenda.
Among the leaders in attendance was Sudan's Omar al-Bashir, who walked the red carpet and was greeted by King Salman.
Ahmed Aboul Gheit, secretary-general of the Arab League, said that the serious crises in the region facilitated foreign interference. The last time the bloc made a concrete move was in 2011, when it suspended Syria's membership over the Assad regime's role in the war.
The Gulf states have donated large amounts of money to help refugees from the country but have not officially offered them asylum.