The United Kingdom temporarily withdrew British staff from its embassy in Iran due to the worsening security situation, with the Tehran mission now operating remotely, the Foreign, Commonwealth & Development Office announced on January 14.

The embassy closure came as US President Donald Trump said on January 14 that the United States received information that "killings in Iran" had stopped amid calm in the capital, according to the latest information available from the limited sources.

The FCDO advised against all travel to Iran and warned British nationals already in the country to "carefully consider your presence there and the risks you take by staying." The advisory warned that travel insurance could be invalidated if travellers go against FCDO advice, but did not offer help on the page to the several dozen British nationals who are residents.

British Foreign Secretary Yvette Cooper told Iranian Foreign Minister Abbas Araghchi on January 12 that Britain expects Iranian authorities to immediately stop violence against protesters.

In response, Araghchi's office warned Britain not to interfere in its internal affairs, stating that if Britain does not cease these statements to Iran "there will be no choice but to return its diplomatic staff from London."

Spain's Foreign Ministry issued a complete travel advisory against Iran on January 14, urging Spanish citizens to leave using available means.

The US State Department urged American citizens on January 12 to leave Iran immediately via land borders to Armenia or Turkey.

US Central Command and regional partners opened a new air and missile defence coordination cell at Al Udeid Air Base in Qatar on January 12.

Protests in Iran that began on December 29 following the rial's collapse have continued despite a near-total internet blackout imposed on January 8.

The latest verified death toll from Iran's protests stands at 2,571 as of 14 January, according to the US-based Human Rights Activists News Agency (HRANA), which says it has confirmed 2,403 protester deaths, 147 government-affiliated personnel, 12 children, and 9 non-protesting civilians, with over 18,100 arrests.

Iranian state media acknowledged "a lot of martyrs" without specifics, while opposition outlet Iran International claims up to 12,000 killed.