British Prime Minister Keir Starmer said on Wednesday there was still a lot of work to do to reopen the Strait of Hormuz following the U.S.-Iran ceasefire, speaking during a visit to the Gulf.

Starmer will hold talks with regional leaders during the visit, which had been planned before the ceasefire was announced.

“We now … have a ceasefire, but there’s a lot of work to do, as you will appreciate, a lot of work to make sure that that ceasefire becomes permanent and brings about the peace that we all want to see,” he said in a speech to military personnel at a base in Saudi Arabia.

“But also a lot of work to do in relation to the Strait of Hormuz, which has an impact everywhere across the world.”

Starmer, who has been heavily criticised by U.S. President Donald Trump for failing to support the U.S. and Israeli strikes on Iran, has hosted multinational meetings on how allies could support the reopening of the key strait that is fundamental to oil and gas trade.

“It’s our job to make sure that the Strait is open, that we’re able to get the energy that the world needs out and stabilise the prices back in the United Kingdom,” Starmer told reporters.

British Foreign Secretary Yvette Cooper also spoke to her U.S. counterpart, Marco Rubio, on Tuesday, about diplomatic measures to secure the reopening of the Strait, including last week’s UK-led meeting that brought together over 40 countries to discuss the issue.