PORT-OF-SPAIN, Trinidad — The U.S. Embassy in Trinidad and Tobago has advised American citizens to steer clear of U.S. government facilities in the nation, issuing this rare alert amid rising tensions between the U.S. and Venezuela following lethal strikes targeting suspected drug traffickers in the Caribbean.

The embassy did not provide specific reasons for the advisory but mentioned a “heightened state of alert” and recommended people “avoid and refrain from visiting all U.S. government facilities through the holiday weekend.” They also urged everyone to remain vigilant of their surroundings. This alert coincides with Diwali, a major Hindu festival of lights, which is celebrated on Monday by a significant portion of Trinidad and Tobago’s 1.4 million residents, of whom 35% identify as East Indian.

Venezuela lies just a few miles from Trinidad, and concern has grown in a coastal community there over two local fishermen who vanished, believed to be casualties of a U.S. strike earlier in the week.

The warning stems from threats targeting Americans in Trinidad and Tobago, with U.S. officials suggesting these threats “may be related” to the regional tensions, according to Roger Alexander, the nation’s minister of homeland security. However, specifics surrounding these threats have not been disclosed by local authorities.

The alert is based on threats directed at American citizens in the Caribbean nation, with U.S. authorities saying “it could be linked” to ongoing tensions in the region, Trinidad and Tobago’s minister of homeland security, Roger Alexander, told The Associated Press. However, local authorities declined to share specific details about the reported threats.

Authorities in Trinidad and Tobago have responded to the threats by implementing security measures to deal with any situations that may arise, Alexander said.

With six strikes killing at least 29 people since early September, the tense situation in the region was mentioned by U.S. officials in a briefing with authorities in Trinidad and Tobago, Alexander said.

Following the most recent attack, the U.S. government took survivors into custody, after the military struck a suspected drug-carrying vessel in the Caribbean, officials said Friday.

The Trump administration has said it considers alleged drug traffickers as unlawful combatants who must be met with military force.