Saudi Arabia said it hoped to have "strong, positive" ties with the UAE, the kingdom's foreign minister said on Monday, but stressed that future relations were contingent on Abu Dhabi's complete withdrawal from Yemen.

"The kingdom is always keen on having a strong, positive relationship with the UAE," Foreign Minister Faisal bin Farhan said during a press conference in Warsaw.

The Israeli military said on Monday that the remains of the last hostage held in Gaza, Ran Gvili, had been identified and repatriated to Israel for burial.

"Following the identification process conducted by the National Forensic Centre, in cooperation with the Israeli police and the military rabbinate, representatives of the (Israeli military) informed the family of hostage Ran Gvili... that their loved one had been formally identified and repatriated for burial," an army statement said.

Kurdish forces in Syria accused Damascus of killing five people in an attack near the northern town of Kobane on Monday, despite a ceasefire between the two sides.

The incident came as the Syrian government and Kurdish forces traded blame over breaching their ceasefire agreement, which was extended by 15 days on Saturday.

Yemen's Iranian-backed Houthi rebels threatened new attacks on ships traveling through the Red Sea corridor, likely trying to back Iran as it worried Monday about an approaching U.S. aircraft carrier after President Donald Trump threatened military action over its crackdown on nationwide protests.

A short video by the Houthis included previously published images of a ship on fire, with the caption: "Soon." The rebels did not elaborate, but their campaign in the Red Sea saw over 100 ships attacked as part of a campaign the Houthis said pressured Israel over its war against Hamas in the Gaza Strip. The Houthis halted their fire after a ceasefire in the conflict, though they've repeatedly warned they could resume fire if needed.

U.S. Secretary of State Marco Rubio has warned Iraq against a pro-Iranian government as the expected return of Nouri al-Maliki as prime minister stirs Washington's concern.

Maliki, who left power in 2014 following heated pressure from the United States, has been chosen by Iraq's largest Shiite bloc, which would put him in line to be nominated prime minister.

The Kremlin on Monday said the US-brokered trilateral talks in the UAE between Russian and Ukrainian negotiators had been held in a "constructive spirit" but that there was still "significant work ahead".

"It would be a mistake to expect any significant results from the initial contacts... But the very fact that these contacts have begun in a constructive spirit can be viewed positively. However, there is significant work ahead," Kremlin spokesman Dmitry Peskov told journalists.

Israel said its military was conducting a "large-scale operation" to locate the last hostage in Gaza, as Washington and other mediators pressure Israel and Hamas to move into the next phase of their ceasefire.

The statement came Sunday as Israel's Cabinet met to discuss the possibility of opening Gaza's key Rafah border crossing with Egypt, and a day after top U.S. envoys met with Prime Minister Benjamin Netanyahu about next steps.

The Syrian government and Kurdish forces have agreed to extend a ceasefire set to expire Saturday, as part of a broader deal on the future of Kurd-majority areas, several sources told AFP.

Iraqi Prime Minister Mohammed Shia al-Sudani told French President Emmanuel Macron on Friday that European countries should repatriate IS detainees that were transferred from Syria to Iraq as part of a US operation.

During a telephone call, Sudani "stressed the importance of countries around the world, particularly European Union member states, assuming their responsibilities by receiving those individuals who hold their nationalities" and prosecuting them, according to a statement from his office.

Modern cities with sleek high-rises, a pristine coastline that attracts tourists, and a state-of-the-art port that juts into the Mediterranean. This is what Jared Kushner, U.S. President Donald Trump's son-in-law and Middle East adviser, says Gaza could become, according to a presentation he gave at an economic forum in Davos, Switzerland.

In his 10-minute speech on Thursday, Kushner claimed it would be possible — if there's security — to quickly rebuild Gaza's cities, which are now in ruins after more than two years of war between Israel and Hamas.