DURHAM, N.C. — The Durham City Council on Monday decided not to continue using ShotSpotter gunfire detection technology.

The vote was 4-2 against renewing the contract, with Mayor Leo Williams and Mayor Pro-Tempore Mark-Anthony Middleton voting to extend the contract and Nate Baker, Javiera Caballero, DeDreanna Freeman and Carl Rist voting against.

The vote was on whether to extend the agreeement with ShotSpotter, which ended last week, through March.

The city began a pilot of ShotSpotter last year and set up an online dashboard where the public could see statistics produced by the program. The system produced more than 1,400 alerts that were linked to 23 arrests, 21 guns recovered and discovery of 48 gunshot wounds, according to the dashboard.

The program has faced criticism for increasing surveillance and over-policing. Speakers at the City Council meeting said money would be better spent on efforts such as raising wages for city workers.

“We need to stop spending our money on technology like ShotSpotter,” said Danielle Purifoy, an assistant professor of geography at UNC-Chapel Hill. “We need to stop listening to these companies that are trying to sell us safety and listen to our actual residents, who’ve been saying for years that we need actual community investments instead of false solutions around gun violence.”

Supporters of the system, such as the Fraternal Order of Police, say it has helped improve public safety. 

Middleton on Wednesday noted that 70% of ShotSpotter alerts were not reported in emergency calls, and he urged residents going forward to report all gunfire by calling 911.

"The ShotSpotter pilot dramatically reminded us of the importance of expedited response to gunfire incidents," he posted on social media.

Six North Carolina cities use ShotSpotter: Winston-Salem, Fayetteville, Wilmington, Goldsboro, Rocky Mount and Greenville.