By: KDKA-TV News Staff

PITTSBURGH (KDKA) – The City of Pittsburgh has said its ShotSpotter system is paying off.

READ MORE: Dr. Freddie Fu, World-Renowned UPMC Doctor, Dies At 70

The system uses a network of acoustic sensors to detect gunfire and it can then pinpoint the location of the shooting.

READ MORE: Pennsylvania Wildfire Season: 99 Percent Of Wildfires Caused By People

According to the city, the system alone is what alerted first responders to 13 shootings over the past two years.

In 2019, paramedics responded to five shootings without anyone calling 911.

MORE NEWS: Butler County-Based Company Pleads Guilty To OSHA Violation That Resulted In Worker's Death

Then, in 2020, in almost a third of the alerts, the ShotSpotter alone is what triggered the emergency response.