U.K. transport officials and police said Thursday they are investigating a “cyber-security incident” that hit the public Wi-Fi networks at the country’s biggest railway stations.

Passengers trying to log onto the Wi-Fi at stations including Manchester Piccadilly, Birmingham New Street and 11 London terminuses on Wednesday evening were met by a page reading “We love you, Europe,” followed by an anti-Islam message listing a series of terror attacks.

Network Rail, which manages the stations, said the Wi-Fi had been switched off and no passenger data was taken.