The US State Department has updated its travel guidance and placed 23 countries under its highest alert level, Level 4, which advises Americans not to travel to those destinations. The warning applies to all travel and signals the most serious risk category used by US officials.

According to the update, the list includes 11 countries in Africa, highlighting the broad geographic reach of the latest advisory. A Level 4 designation is typically used when the US government believes conditions in a country pose severe safety concerns for travelers.

The advisory is meant to inform US citizens about destinations where risks may be elevated to the point that travel is strongly discouraged. While the brief update does not detail every reason country by country, Level 4 notices are generally tied to major security, safety, or stability concerns.

The announcement adds to ongoing attention around international travel safety as governments continue to revise guidance based on changing conditions abroad. Americans planning overseas trips are being urged to review the latest State Department notices carefully before making travel decisions.