Hackers take over PA systems at 4 airports

(CNN)– Hackers appear to have breached the public address systems at four airports in North America.

On Tuesday, travelers heard unauthorized messages with expletives that praised Hamas and attacked President Trump along with Israel’s prime minister.

The messages played in the Harrisburg International Airport in Pennsylvania, Kelowna and Victoria International Airports in British Columbia, and Windsor International Airport in Ontario.

Transport Canada which regulates airports in Canada blasted the breach, saying it disrupted operations and scared passengers.

U.S. Transportation Secretary Sean Duffy said the FAA is working with the Harrisburg Airport to investigate.