Mombasa, the second-largest city and a major tourist spot for the East African nation, is one of various cities targeted by a series of grenade attacks in recent months.
The U.S. Embassy in the capital, Nairobi, said it has suspended all U.S. government travel to Mombasa until July 1.
“All U.S. government personnel are required to leave Mombasa,” the embassy said in a statement Friday. “U.S. private citizens are not subject to the same restrictions, but should consider this information in their travel planning.”
The warning did not elaborate on the threat or why it targeted the port city.
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