内容摘要：The UN has said the blockade has caused severe shortages of food, medicines and fuel, and an assessment on Monday warned that Gaza's population of around 2.1 million people

The UN has said the blockade has caused severe shortages of food, medicines and fuel, and an assessment on Monday warned that Gaza's population of around 2.1 million people

The decision to drop the most expansive Biden-era rule helped facilitate AI deals between firms such as Nvidia and countries including Saudi Arabia, which was announced during Trump's tour of the Middle East last week.But the White House has tightened restrictions in other ways, barring US firms from sales of advanced technology to

, mostly from China.Last month, the Commerce Department said it would impose new licensing requirements for exports of certain Nvidia chips.It has said it intends to replace the Biden-era restrictions with its own approach.

It also recently issued an alert to US firms, warning them that using Huawei chips risked violating US rules.Beijing has since pushed back against that move, accusing the US of undermining the framework agreed during trade talks in Switzerland earlier this month.

Flying home from his Gulf trip last week, President Donald Trump told reporters "that was a great four days, historic four days".

Visiting Saudi Arabia, Qatar and the United Arab Emirates (UAE), he added in this trademark swagger that "the jobs and money coming into our countries, there has never been anything like it".His main rival was the ruling party candidate and a former member of Yoon's cabinet, Kim Moon-soo.

He had been trailing Lee for weeks in polls and in the early hours of Wednesday, he conceded defeat, congratulating Lee "on his victory".In an earlier speech, Lee had hinted at the win but stopped short of declaring it. He said "recovering" South Korea's democracy would be his first priority.

The snap election comes just three years after the 61-year-old lost his last presidential bid by a razor-thin margin to Yoon.It's a remarkable comeback for a man who has been caught in several political scandals, from investigations over alleged corruption to family feuds.