It was a no-news-is-good-news kind of milestone: For the first time in at least 25 years, New York City just had a weekend with no shootings.

"A city of 8.6 million people — not a single shooting for three days," Mayor Bill de Blasio said on Monday, according to CNN. "Let's thank the NYPD for what they've achieved."

In the city's five boroughs, no shootings were reported from Friday to Sunday.

The New York Police Department's data on shootings only goes back to 1993, so it's possible that it was the first time in even longer, the department told CNN.

"My thanks to every member of the #NYPD for working hard to protect this city and to every member of the public who has helped us make this city so safe," tweeted Chief of Patrol Rodney Harrison.

The number of shootings in the city in September was down 4.7 percent from the same month last year, but the number of murders and rapes were both higher compared to 2017.

The streak was broken on Monday afternoon, when a 27-year old man in the Bronx was shot in the ankle, the New York Daily News reported.

NYPD's Chief of Department Terence Monahan told the newspaper that the department's focus on preventing retaliatory violence has been effective.

"We moved personnel around to try to prevent retaliation and it works," he said. "One [shooting] can turn into five if we're not on top of it."

Copyright 2018 NPR. To see more, visit http://www.npr.org/.