A coast guard boat of the Venezuelan Navy operates off the Caribbean coast amid heightened tensions with the US, in Puerto Cabello, Venezuela, on September 11. Juan Carlos Hernandez/Reuters/File Washington Reuters —

The US Federal Aviation Administration warned major airlines on Friday of a “potentially hazardous situation” when flying over Venezuela and urged them to exercise caution.

The FAA notice cited the “worsening security situation and heightened military activity in or around Venezuela” and said threats could pose risks for aircraft at all altitudes.

There has been a massive American military buildup in the region in recent months, including the US Navy’s largest aircraft carrier , at least eight other warships, and F-35 aircraft.

The administration of US Presiden

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