New Orleans Mayor LaToya Cantrell declared a state of emergency in the Louisiana city on Friday after a cyberattack forced the city to shut down all computers on site as a precaution against further damage. The city is reporting that they do not believe their employees’ information has been compromised though.

The phishing and ransomware attack was first noticed around 5am Friday and, as employees came into work and began signing into their computers in the 8am hour, the attack increased. By 11am, computer investigators had declared a fill-scales cyberattack on the city.

Currently. It is not known who is behind the attacks but the incident is being investigated by the city of New Orleans as well as the Louisiana State Police, Louisiana National Guard, the FBI and the Secret Service. This is not the first time this has happened in the state. In July, there was a similar attack that happened at several Louisiana school systems. Those malware attacks also prompted a state of emergency to be called by Gov. John Bel Edwards.