An NFL employee is among the wounded in Monday’s ᴅᴇᴀᴅly shooting inside a Midtown skyscraper that housed the league’s offices. 

NFL commissioner Roger Goodell told league staffers in a letter, viewed by The Post, Monday night, that one of their own had been “seriously injured” in the shooting at 345 Park Avenue that took the lives of an off-duty NYPD officer and three others. 

“He is currently in the hospital and in stable condition. NFL staff are at the hospital and we are supporting his family,” Goodell wrote in the message, while ᴀssuring league staff that “all of our employees are otherwise safe and accounted for.” 

Mayhem erupted in Midtown when a rifle-wielding gunman, who police identified as Shane Tamura, walked into the 44-story office building that houses the NFL’s offices, along with Blackstone and other businesses and killed four people before he took his own life. 

Officials have not identified three of the victims, but released the name of the fallen NYPD officer during a late-night news conference as 36-year-old Didarul Islam. 

In his letter to NFL employees, Goodell praised law enforcement’s quick response and the heroism of Officer Islam. 

“We are deeply grateful to the law enforcement officers who responded to this threat quickly and decisively and to Officer Islam, who gave his life to protect others,” he wrote. 

The NFL offices occupy floors five through eight inside the Midtown building. 

NFL employees had been told to shelter in place when the chaos began, ESPN reported. 

City officials detailed the harrowing events that unfolded Monday evening at 345 Park Avenue during a press conference. 

Tamura, a 27-year-old Las Vegas resident, walked into the building at 6:30 p.m. armed with a rifle and began shooting in the lobby. 

He made his way to the 33rd floor, where he eventually took his own life. 

New York City Mayor Eric Adams and NYPD Commissioner Jessica Tisch were both visibly shaken during the press conference. 

Adams had told reporters that one man had been seriously injured and was in critical condition and four others had suffered minor injuries as they fled. 

No motive for the shooting is known, but it was noted that he had a “documented mental health history.”

“His motives are still under investigation. We are working to understand why he targeted this particular location,” Tisch said.