The UK government has withdrawn its staff from Iran.

It said the temporary precautionary measure has been taken due to the ongoing security situation.

At the US embassy in Jerusalem, non-emergency US staff and family have been told to leave Israel due to safety risks.

"Persons may wish to consider leaving Israel while commercial flights are available," the embassy said.

Britain's foreign office provided the update on Friday, amid concerns about tensions between the US and Iran.

"Due to the ongoing security situation, we have taken the precautionary measure to temporarily withdraw UK staff from Iran," the UK government foreign travel advice website said.

"Our embassy continues to operate remotely."

Donald Trump set ​out his case for a possible attack on ​Iran in ⁠his State ⁠of the Union speech on Tuesday.

The US president said while he preferred a diplomatic ‌solution, he would not allow Tehran to obtain a nuclear weapon.

This breaking news story is being updated and more details will be published shortly.

Please refresh the page for the fullest version.

You can receive breaking news alerts on a smartphone or tablet via the Sky News app. You can also follow us on WhatsApp and subscribe to our YouTube channel to keep up with the latest news.