Saudi King Salman reaffirmed support for Palestinians to US President Donald Trump, state media said Tuesday, after his son and heir apparent said Israel has a “right” to a homeland.

The king “reaffirmed the kingdom's steadfast position towards the Palestinian issue and the legitimate rights of the Palestinian people to an independent state with Jerusalem as its capital,” the official Saudi Press Agency said.

The king also emphasised the need to advance the Middle East peace process in a phone call with Trump, which came after Israeli forces killed 17 Palestinians last week during a demonstration on its border with Gaza.

Saudi Arabia and Israel have no formal diplomatic relations, but behind the scenes their ties appear to have improved in recent years against what they see as a common Iranian threat.

Israel's conflict with the Palestinians has long proved an obstacle to a full rapprochement, however, as Riyadh still supports the Palestinian claim to sovereignty.

But Crown Prince Mohammed bin Salman indicated a notable shift in the kingdom's position in an interview published Monday with US news magazine The Atlantic.

The prince was asked by the magazine whether the “Jewish people have a right to a nation-state in at least part of their ancestral homeland?”

“I believe that each people, anywhere, has a right to live in their peaceful nation,” said the prince, who is on a three-week US tour.

“I believe the Palestinians and the Israelis have the right to have their own land,” he added.

“But we have to have a peace agreement to assure the stability for everyone and to have normal relations.”

Since 2002, Saudi Arabia has been the main sponsor of the Arab Peace Initiative, which envisions a two-state solution to the Israeli-Palestinian conflict.

No senior Saudi official is known to have previously accepted that Israel has a right to any land beyond the practical need to secure a lasting deal.