The British embassy in Tehran has been temporarily closed, the government said on Wednesday, according to Reuters.
"We have temporarily closed the British Embassy in Tehran, this will now operate remotely. Foreign Office travel advice has now been updated to reflect this consular change," a government spokesperson said.
Britain's ambassador and all consular staff were evacuated based on a security assessment and a decision to prioritise staff safety, a British official said.
Britain and the United States withdrew some personnel from bases in the Middle East after a senior Iranian official said Tehran had warned neighbours it would hit American bases if Washington strikes.