The US government has obtained information that “unknown individuals are possibly plotting to attack Americans at the Marriott Hotel in Islamabad sometime during the holidays”, the embassy said in a security alert on Sunday.
The advisory banned US embassy staff and other nationals from visiting the hotel over the Christmas holiday.
The US mission also urged to refrain from non-essential travel in Islamabad during the holiday season.
The embassy directive followed a suicide bombing in a residential area of Islamabad on Friday, which killed a police officer and wounded 10 people.