Tensions are mounting between the United States and Venezuela as Washington escalates its naval presence in the southern Caribbean and surrounding waters, citing threats from Latin American drug cartels.

President Donald Trump has made cracking down on cartels a cornerstone of his administration, part of a broader push to curb migration and bolster security along the U.S. southern border.

While U.S. Coast Guard and Navy vessels routinely operate in the region, officials say the current buildup is far larger than typical deployments.

A U.S. official, speaking on condition of anonymity Thursday, said seven warships, along with a nuclear-powered fast-attack submarine, were either already in the area or expected to arrive in the coming week.

Venezuelan President Nicolas Maduro condemned the buildup, warning of potential escalation.