On February 11, 2013, Great Falls, Montana CBS affiliate KRTV had their Emergency Alert System hijacked with a audible message warning viewers that "dead bodies are rising from their graves". Later the same night in Marquette, Michigan and the early morning hours in La Crosse, Wisconsin, the same type of hijacking and reference to a "zombie invasion" was made over the EAS systems of CBS affiliate WKBT-DT, ABC affiliate WBUP and PBS member station WNMU during primetime programming. Shortly afterwards, PBS affiliate KENW of Portales, New Mexico was struck with a similar hacking incident, repeating similar information regarding zombies; however, this led to the arrest of the hacker of the four television stations.