The US Federal Aviation Administration on Tuesday issued another warning to major airlines of a “worsening security situation” when flying over Venezuela and urged them to exercise caution. “Threats could pose a potential risk to aircraft at all altitudes, including during overflight, the arrival and departure phases of flight, and/or airports and aircraft on the ground,” the FAA said in a notice.For all the latest headlines, follow our Google News channel online or via the app.The notice follows a similar announcement last month and comes on the heels of a large-scale US military buildup in the southern Caribbean as US President Donald Trump campaigns to oust Venezuelan leader Nicolas Maduro.Read more: Trinidad and Tobago will open nation’s airports to US military as Venezuela tensions grow