A flood of 911 calls came in as Jordan Neely was choked to death on the subway this week — with one rider claiming one of the men was armed with a gun or a knife, police officials said.

A total of five emergency calls were made over a four-minute span just before 2:30 p.m. Monday as a Marine — now identified as 24-year-old Daniel Penny — held Neely in a chokehold on the floor of the northbound F train in Lower Manhattan.

The first call, which came in at 2:26, was reporting a physical fight on the subway followed by another one minute later reporting someone on the train threatening riders.

Seconds later, a third caller claimed a straphanger was armed with a knife or a gun. It was unclear who the caller was referring to, though neither Neely nor Penny turned out to be armed.

Two more calls then came in a minute apart at, 2:29 and 2:30, for reports of an assault in progress and threats, respectively.

Mayor Adams said cops and EMTs were on the scene within six minutes of getting the first call.

But by that point, emergency responders could not revive an unconscious Neely.

While overviews of the calls were released Friday, the city has still not released full transcripts of the calls.

Penny was taken into custody but was later released as the Manhattan District Attorney’s Office weighs whether to bring criminal charges in the chokehold death.

A grand jury could be empaneled to look at the case as early as next week.

The city Medical Examiner’s Office ruled Wednesday that the death was a homicide by compression of the neck.