The NYPD is investigating the death of a Bronx man who was in police custody.

It happened just before 5 p.m. Sunday.

Officers responded to a call of an emotionally disturbed person at an apartment on  Reservoir Ave. in Fordham Manor.

That's where a father said his son, 48-year-old Dwayne Pritchett, would not come out of his room, police said.

Pritchett opened the door and officers handcuffed him after finding a handgun magazine on the floor, according to officials.

Police said officers subdued and handcuffed Pritchett and that at some point during the confrontation, Pritchett tried to grab an officer's gun.

Police said Pritchett was taken to another room, where he lost consciousness. EMS then tried to revive him.

Pritchett's girlfriend, Alotisia Stevens, said detectives told her he reached for the gun after he was cuffed, which she said makes no sense.

"So if I'm like this, detained in handcuffs, at what — how am I able to grab your gun?" Stevens said, demonstrating.

Friends have also questioned why Pritchett was brought to NewYork-Presbyterian The Allen Hospital and not a closer facility.

The Manhattan hospital actually is the same distance from the apartment as Bronx-Lebanon Hospital. However, a VA hospital is even closer.

The father and son's elderly roommate said he witnessed this chaotic scene. He told NY1 that the younger Pritchett had his hands cuffed behind his back when he passed out in the living room. He adds he doesn't blame police for Pritchett's death.

"I don't blame them, because I'm for police," said Harmen Garment, Pritchett's roommate. "Maybe they could have gotten him to the hospital sooner? I couldn't answer that."

"He was drinking every day, all day. And drugging and drinking? That's complications," Garment said.

Police said they found a gun and drug paraphernalia in Pritchett's bedroom.

The case has been assigned to the NYPD's Force Investigation Division.

A medical examiner will determine the cause of death.