(CNN) — Unauthorized pro-Palestinian political messages praising Hamas and attacking President Donald Trump and Israel’s prime minister were broadcast through public address systems at two airports in North America on Tuesday, disrupting operations and sparking investigations into the apparent hacks.

Videos posted by passengers on social media show the unauthorized recordings played at Harrisburg International Airport in Pennsylvania and Kelowna International Airport in British Columbia, Canada.

The pro-Hamas recordings and messages praise Hamas and, using expletives, are critical of the Trump administration and Israeli Prime Minister Benjamin Netanyahu.

The breaches come as the air travel industry has been dealing with an onslaught of cyberattacks that have caused disruptions for cust

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