MEXICO CITY – The U.S. Embassy in Mexico has issued a new travel alert for the Caribbean resort city of Playa del Carmen, where an explosion on a tourist ferry injured 26 people last month.

The embassy says in an alert posted on its website that it received information Wednesday about a “security threat” in that city and U.S. government employees have been ordered to stop traveling to the area “until further notice.”

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It adds that the U.S. consular agency in Playa del Carmen will also be closed.

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The embassy did not specify the threat or say if it was related to the February 21 blast or the subsequent discovery of apparent explosives attached to another vessel.

After the warning was issued administrators at the University of North Texas sent a tweet to Spring Break travelers and advised them to check out more State Department information about traveling to high-risk areas.

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