In a recording released by the Minneapolis Police Department Monday, a 911 dispatcher called a sergeant with concerns about how officers handled detaining, and ultimately killing, George Floyd on May 25. 

According to a Fox 9 report, the dispatcher said they watched the detainment on a live feed and noticed that something looked different when officers “sat” on Floyd. 

“You can call me a snitch if you want to, but we have the cameras up for 320’s call. They must have already started moving him. … I don’t know if they had to use force or not, but they got something out of the back of the squad, and all of them sat on this man, so I don’t know if they needed you or not, but they haven’t said anything to me yet,” the dispatcher said. 

“Yeah, they haven’t said anything. Must have been just a takedown, which doesn’t count, but I’ll find out,” the sergeant answered.

“We don’t get to ever see it so when we see it, we’re just like, ‘well, that looks a little different,'” the dispatcher added. 

Before hanging up the phone, the sergeant said he would look into the dispatcher's concerns. There has been no confirmation that the sergeant followed up on the matter, per CBS Minnesota. 

The police department also released a written transcript of calls made by bystanders in the moments following Floyd’s murder. In the first call, made at 8:32 p.m., the caller described the incident as a murder and noted that Floyd “wasn’t resisting arrest.”

"Yes, yeah, we just watched Officer #987 kill a … citizen in front of a Chicago … store. He just pretty much just killed this guy that wasn’t resisting arrest. He had his knee on the dude’s neck the whole time, Officer #987. The man … stopped breathing. He wasn’t resisting arrest or nothing," the bystander said in the transcript.

"He was already in handcuffs," they said. "They pretty much is stupid dude, I don’t even know if he dead for sure but dude was not responsive when the ambulance came and got him, and the officer that was just out here left, the one that actually just murdered the kid in front of everybody on 36th, 38th and ah Chicago." 

A few seconds later, a second caller notified a 911 operator that they watched police refuse to take a pulse or try to sustain Floyd’s life. 

“Hello, I am on the block of 38th and Chicago and I literally watched police officers not take a pulse and not do anything to save a man, and I am a first responder myself, and I literally have it on video camera. … I just happened to be on a walk so, this dude, this, they f**king killed him,” the caller began. 

This bystander also indicated to the operator that they would be willing to file a complaint with police supervisors. 

“I’m recording this. … I’m f**king recording this right now. I’m willing to talk to your agents about this so if we need to talk to a supervisor right now or if somebody needs to get into contact with me later on,” they said. 

Former police officer Derek Chauvin has been charged with second-degree manslaughter, second-degree murder and third-degree murder for suffocating Floyd, despite Floyd’s harrowing statement of "I can’t breathe.” A judge set Chauvin’s bail at $1.25 million, according to The Guardian. Chauvin is being held at the Minnesota Correctional Facility, the state’s lone maximum security prison.

The three other officers involved in Floyd's killing, Thomas Lane, Tou Thao and J. Alexander Kueng, face charges of aiding and abetting second-degree murder and second-degree manslaughter. Kueng and Lane were both trainee officers, according to BBC.