Palestinian leader Mahmoud Abbas has said there could be no peace in the Middle East without a two-state solution, sending a warning as Saudi Arabia considers recognizing Israel.

"Those who think that peace can prevail in the Middle East without the Palestinian people enjoying their full, legitimate national rights would be mistaken," Abbas told the U.N. General Assembly.

Israeli authorities are trying to figure out how a heavily armored, but unarmed, tank was stolen from a military training zone after finding it discarded in a junkyard.

The Israeli Merkava 2 tank disappeared from a training zone in northern Israel near the coastal city of Haifa, the Israeli army said Wednesday. The training zone is closed to the public when in use, but is otherwise accessible to passersby.

Syrian President Bashar Assad arrived in China on Thursday on his first visit to the country since the start of Syria's 12-year conflict during which Beijing has been one of his main backers.

China's foreign ministry said Assad would attend the opening ceremony of the Asian Games, an international sports event beginning Saturday in the eastern city of Hangzhou.

Saudi Arabia and Israel have voiced optimism that they were moving closer to a historic normalization of ties as Iran -- their common foe -- accused the kingdom of betraying the Palestinians through the U.S.-led effort.

U.S. President Joe Biden is hoping to transform the Middle East -- and score an election-year diplomatic victory -- by securing recognition of the Jewish state by Saudi Arabia, the guardian of Islam's two holiest sites.

Joe Biden and Benjamin Netanyahu have met to smooth over months of tension, eyeing a deal to normalize Israel's ties with Saudi Arabia despite U.S. concerns over the state of Israeli democracy.

Biden said the pair had a "candid, constructive conversation" in New York, their first talks since the Israeli prime minister was reelected in December at the head of a hard-right government.

Turkey's President Recep Tayyip Erdogan met in New York Tuesday with Israeli Prime Minister Benjamin Netanyahu, who said "ties between the two countries were improving".

After more than a decade of tensions, relations have improved with recent high-level visits, including that of Israeli President Isaac Herzog to Ankara last year.

Syria's President Bashar Assad will head to China later this week in his first visit to Beijing since the start of his country's 12-year conflict during which China has been one of his main backers, his office said Tuesday.

China has been expanding its reach in the Middle East after mediating a deal in March between Saudi Arabia and Iran, and it continues to support Assad in the Syrian conflict, which has killed half a million people and left large parts of the nation in ruins.

Prime Minister Benjamin Netanyahu is set to have his long-coveted meeting with President Joe Biden on Wednesday — bringing together the two leaders for the first time since the Israeli leader took office at the helm of his country's far-right government late last year.

Netanyahu has been a frequent visitor to the White House over the years, and Israeli leaders are typically invited within weeks of taking office. The lengthy delay in setting up the meeting with Biden, and the White House decision to hold the meeting in New York rather than Washington, have been widely interpreted in Israel as signs of U.S. displeasure with Netanyahu's new government.

Saudi Arabia on Wednesday praised the "positive results" of negotiations with Yemen's Houthi rebels after they visited the kingdom for peace talks, though Riyadh released few details on their discussions to end the war tearing at the Arab world's poorest nation.

The five days of talks, which represented the highest-level, public negotiations with the Houthis in the kingdom, come as Saudi Arabia tries a renewed bid to end the yearslong coalition war it launched on Yemen. That conflict had become enmeshed in a wider regional proxy war the kingdom faced against its longtime regional rival Iran, with which it reached a détente earlier this year.

Israeli military operations in the occupied West Bank and unrest in the Gaza Strip have killed six Palestinians, Palestinian health officials said Wednesday, the latest spike in a wave of violence that has roiled the region for more than a year.

The death toll from the most recent flare-up stood at four late Tuesday. But on Wednesday the Palestinian Health Ministry raised it, saying an Israeli raid into the Jenin refugee camp in the northern West Bank killed four people and wounded some 30 others, while a raid in a separate refugee camp killed another Palestinian. A sixth Palestinian was killed by Israeli fire in unrest in the Gaza Strip, officials said.