Gulf and Arab leaders at the Organisation of Islamic Co-operation (OIC) talks in Makkah on Friday, the third summit hosted by Saudi Arabia over two days, denounced the controversial US moves to transfer its embassy to Jerusalem and recognise Israel's sovereignty over the Golan Heights.
A communique issued after the meeting also urged OIC members to boycott countries that have opened diplomatic missions in the city.
The statement comes as US President Donald Trump's son-in-law Jared Kushner prepares to roll out economic aspects of his long-awaited Middle East peace plan at a conference in Bahrain later this month.
The plan, dubbed by Mr Trump as the "deal of the century", has already been rejected by the Palestinians, who say the US president's policies have shown him to be biased in favour of Israel, such as his decision to recognise Jerusalem as the capital of Israel.
The OIC expressed concern over growing Islamophobia around the world, describing it as "a contemporary form of racism and religious discrimination" whose spread was evident "by the increase in incidents of religious intolerance, negative stereotyping, and hatred and violence against Muslims".
It called on the United Nations to observe March 15 as the International Day Against Islamophobia.
Darul Ihsan Media Desk