A bullet struck the office of Kansas City Chiefs coach Andy Reid, in a late-night incident the team kept under wraps for more than 15 months, officials said Thursday.

Police were called to the team’s training facility a short distance away from GEHA Field at Arrowhead Stadium at 1:27 a.m. May 4, 2024, police records show.

“When officers arrived, they were told by overnight security that someone in the building alerted them to hearing a noise and observed what appeared to be a bullet hole in a window,” KCPD Sgt. Phil DiMartino said in a statement.

The building “was occupied at the time of the bullet coming through the window,” but no one was “struck, and there were no injuries associated with the incident,” DiMartino said.

There have been no arrests.

“There is no indication this was a targeted incident at any person or organization,” DiMartino said.

The incident had not been disclosed publicly until the Kansas City Star reported it Thursday.

Chiefs president Mark Donovan said the franchise is committed to safety for employees and fans. The team executive said he believed the prudent measure was to keep quiet about the incident.

“We sat with the experts on both the investigation side as well the communication side as well as the safety side, and we decided this was the right path to take,” Donovan told reporters at an annual business luncheon celebrating the season’s start.

The 67-year-old Reid is one of the most successful coaches in NFL history.

At 273-146-1, he is the winningest active head coach in the NFL and is No. 4 in all-time regular season wins, trailing only Don Shula, George Halas and Bill Belichick.

The shooting incident happened during the NFL offseason, with the Chiefs nearly three months removed from their 25-22 Super Bowl victory over the San Francisco 49ers and four months before the start of the regular season.

The Chiefs Super Bowl victory parade on Feb. 14 last year was marred by gunfire a short distance away.

DJ Lisa Lopez-Galvan, who co-hosted a weekly radio show on local station KKFI 90.1 called “A Taste of Tejano,” was killed.