The Pennsylvania 911 call system outage earlier this month was caused by a technical issue, not a cyberattack, according to a preliminary report. People calling 911 in Pennsylvania experienced intermittent disruptions on July 12.

The state’s 9-1-1 system experienced an outage earlier this month, and the Pennsylvania Emergency Management Agency (PEMA) has shared its findings after a preliminary analysis. According to PEMA, the analysis found that the issues were due to a defect in an operating system,

System issues were behind intermittent disruptions to Next-Generation 911 earlier this month, the Pennsylvania Emergency Management Agency said in a preliminary report. A cyber attack is not believed to be behind it.