The city of Atlanta’s computer network is reportedly experiencing outages, which are believed to have been caused by a targeted cyber-attack.

According to Atlanta-based news station 11Alive, multiple sources familiar with the situation confirmed that various city systems had been impacted.

In a statement on Twitter, the city said it is “currently experiencing outages on various customer facing applications, including some that customers may use to pay bills or access court-related information.”

“At this time, our Atlanta Information Management team is working diligently with support from Microsoft to resolve this issue. We are confident that our team of technology professionals will be able to restore applications soon. Our city website, Atlantaga.gov, remains accessible and we will provide updates as we receive them,” said the city. 

FBI spokesperson Kevin Rowson told the Washington Post the agency is aware of the incident and is working with the city to investigate what happened.

At this time, it is unclear how many city systems have been affected and to what extent.