Oil prices gained more than 1% after President Donald Trump said China wants ​to buy oil from the United States, and as concerns persisted over ‌ship attacks and seizures despite Iran saying about 30 vessels had passed through the Strait of Hormuz.

Brent crude oil futures rose $1.17, or 1.11%, to $106.89 a barrel, while US ​West Texas Intermediate futures were up $1.10, or 1.09%, to $102.27.

Trump also said in an ​interview with Fox News that he would not be much more patient with ⁠Iran as he urged Tehran to reach a deal with Washington.

A ship was ​reported seized by Iranian personnel off the United Arab Emirates and headed for Iranian waters ​on Thursday, while the White House said US President Donald Trump and Chinese President Xi Jinping had agreed on the need to keep the nearby Strait of Hormuz shipping lane open.

Also, an Indian ​cargo vessel carrying livestock from Africa to the United Arab Emirates was sunk on ​Wednesday in waters off the coast of Oman.

Iran’s Revolutionary Guards said 30 vessels had crossed the Strait ‌of ⁠Hormuz since Wednesday evening, still far short of 140 that were typical daily before the war, but a substantial increase if confirmed.

Yang An, analyst at Haitong Futures, said the main driver of oil prices was still tight supply.

“Oil prices swung several ​times yesterday but still ​closed near the ⁠day’s high,” he said.

“Ships passing through the strait eased some market concerns, but not enough to change the strong trend driven ​by tight supply.”

Trump and China’s Xi Jinping are set to meet ​on Friday ⁠to wrap up a two-day state visit that has featured pomp and business deals.

US Trade Representative Jamieson Greer said on Friday morning that China was being very pragmatic about involvement ⁠with ​Iran, and it was important to China to ​have the Strait of Hormuz open, in an interview with Bloomberg.