The United Kingdom government issued a travel warning for British citizens and passport holders planning to visit the United States, updating its “foreign travel advice” to warn of potential arrest for failing to comply with entry requirements.

“You should comply with all entry, visa and other conditions of entry. The authorities in the US set and enforce entry rules strictly. You may be liable to arrest or detention if you break the rules,” the page read.

JUST IN – UK issues travel warning for US — The United Kingdom updated its advice for travel to the United States on Thursday, warning of harsh consequences for British passport holders who violate U.S. immigration laws — The Hill

— Insider Paper (@TheInsiderPaper) March 20, 2025

The Hill reports:

The notice comes just a day after Germany updated its travel advice after three of its citizens were detained trying to enter the U.S.

The U.K. foreign office confirmed earlier this month that it was providing support to a British national detained in the U.S. after reports circulated of a woman detained at the border, Reuters reported.

In its updated advice, the U.K. foreign office told citizens to “comply with all entry, visa and other conditions of entry.”

Germany, UK issue travel warnings to their citizens about traveling to the U.S. pic.twitter.com/lIsyP0tKba

— Phil Williams (@PhilNvestigates) March 20, 2025

The U.K. and Germany have updated their advice for travellers seeking to enter the U.S. with fresh warnings about the risk of arrest or detention.https://t.co/WvUxvaybEA

— Globalnews.ca (@globalnews) March 20, 2025

Per Newsweek:

Trump pledged to carry out mass deportations of individuals living in the U.S. without legal status. His term started with large-scale immigration raids, a suspension of asylum processing for undocumented migrants, and executive orders expanding ICE’s authority to arrest and detain those in the country unlawfully.

The administration has prioritized increasing deportation efforts, aiming to remove millions of undocumented immigrants.

This marks a notable change from the guidance issued earlier this year. Archived versions of the U.K.’s Foreign, Commonwealth and Development Office (FCDO) website from early February only briefly reference U.S. entry rules being strictly enforced without an explicit warning about potential legal consequences.

The new advisory does not specify a particular reason for the updated language, but it comes amid heightened scrutiny of international travelers by U.S. border officials.

British citizens are urged to ensure they have the correct documentation and to adhere to all visa conditions when entering the country.