bbc– Israeli Prime Minister Benjamin Netanyahu secretly flew to Saudi Arabia on Sunday to meet Crown Prince Mohammed bin Salman, Israeli media report.

Flight-tracking data showed a business jet previously used by Mr Netanyahu travelled to the Red Sea city of Neom.

There was no official confirmation, but an Israeli minister said he had been told about it by the foreign ministry.

It would be the first known meeting between leaders of the historical foes, whom the US wants to normalise ties.

President Donald Trump has recently brokered deals establishing diplomatic relations between Israel and the United Arab Emirates, Bahrain and Sudan.

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Saudi Arabia cautiously welcomed those moves, but indicated it would wait until there was a peace agreement between Israel and the Palestinians.

Also on Monday, a delegation of senior Israeli officials travelled to Sudan on what would also be the first such visit to a formerly hostile country, an unnamed Israeli official confirmed.

The sides are expected to map out areas of co-operation, after Mr Trump announced last month that Sudan had agreed to normalise ties with Israel.

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Citing unnamed Israeli sources, Israeli public broadcaster Kan and other media reported that Mr Netanyahu and the head of the Mossad intelligence service, Yossi Cohen, attended talks in Saudi Arabia on Sunday evening with Crown Prince Mohammed and US Secretary of State Mike Pompeo.

A senior Saudi adviser told the Wall Street Journal that the leaders discussed several issues, including normalisation of ties and Iran, but that no substantial agreements were reached.

The trip was spotted by an Israeli journalist on a flight-tracking website; a private jet used by Mr Netanyahu was flying to the Saudi city of Neom.

The Red Sea resort is a hi-tech and tourism hub planned by Mohammed bin Salman.

It is close to the borders of Egypt and Jordan, and only some 70km (44 miles) from the southern tip of Israel – a symbolic destination for the leaders to discuss a changing Middle East, mediated by President Trump’s outgoing team.

With the UAE, Bahrain and Sudan signed up, normalisation between Israel and Saudi Arabia would be the big deal.

The agreements mark big diplomatic and trade wins; also in the background are some controversial US arms sales, and the Trump team’s desire to consolidate its regional allies against Iran.

But Saudi Arabia will be cautious over going public with an Israeli rapprochement for fear of a backlash in the conservative nation. And the big hurdle comes back to a core issue – the Saudis still say there will be no deal before the Israelis reach a permanent peace agreement with the Palestinians.

Israeli media reported that Mr Netanyahu flew on a private jet belonging to Israeli businessman Udi Angel that the prime minister had used for previous overseas trips.

According to data from FlightRadar24.com, a Gulfstream IV jet took off from Tel Aviv’s Ben Gurion International airport on Sunday afternoon and flew south along the eastern coast of Egypt’s Sinai Peninsula before heading towards Saudi Arabia’s north-western Red Sea coast.

The aircraft landed in Neom just after 18:30 GMT and remained there until 21:50, according to the data. It then returned to Tel Aviv via the same route.

Mr Netanyahu’s office would not confirm the reports of the meeting.

But cabinet minister Zeev Elkin told Army Radio: “I wasn’t on the plane to Saudi Arabia.”

Mr Netanyahu’s social media adviser, Topaz Luk, also appeared to suggest the meeting had taken place when he tweeted: “Gantz is playing politics while the prime minister is making peace”.

Mr Luk seemed to be referring to a decision by Defence Minister Benny Gantz, Mr Netanyahu’s rival, to establish a commission of inquiry into a $2bn (£1.5bn) submarine deal with Germany that has been described by some as the biggest corruption scandal in Israeli history.

Saudi state media reported that Prince Mohammed had met Mr Pompeo on Sunday, but they made no mention of any visit by Mr Netanyahu.

President Trump has said he expects Saudi Arabia to normalise relations with Israel, but such a move faces big hurdles.

Saudi Foreign Minister Prince Faisal bin Farhan Al Saud said in an interview on Saturday with Reuters news agency during the G20 summit – hosted by Saudi Arabia but with world leaders participating virtually – that the kingdom’s position had not changed.

“We have supported normalisation with Israel for a long time, because we are the authors of the 2002 Arab Peace initiative, which envisioned complete normalisation with Israel.”

“But there is one very important thing that has to happen first, which is a permanent and full peace deal between the Palestinians and Israelis that delivers a Palestinian state with dignity within the 1967 borders to the Palestinians.”