New footage from the Kansas City Chiefs' Super Bowl victory parade depicts fans apprehending an individual whom police suspect to be involved in the February 14 shooting, resulting in at least one fatality and over 20 injuries.

According to Kansas City police, a group of bystanders tackled one of the suspects, as shown in the video capturing the moments following the incident in downtown Kansas City, Missouri. In the footage, a voice can be heard stating, "When we tackled him, the gun came out."

Currently, police have not confirmed whether the individual tackled is under custody or investigation.

During a news conference on Wednesday, Police Chief Stacey Graves mentioned that three individuals are in detention, stating, "We are working to determine if one of the three are the one that was in that video, where fans assisted police."

None of the detained individuals have been named or charged yet, and the deceased victim remains unidentified.

Three law enforcement officials informed NBC News that they believe the shooting was of a criminal nature and is not initially suspected to be an act of terrorism.

The shooting took place outside Union Station towards the end of the parade commemorating the Chiefs' Super Bowl victory over the San Francisco 49ers on Sunday.

A spokesperson from Children's Mercy in Kansas City reported treating 12 patients from the parade, with 11 of them being children aged between 6 to 15. Among these patients, nine have sustained gunshot wounds, but all are expected to recover.

Following the tragic shooting, the Chiefs issued a statement expressing their profound sadness over the senseless violence.

“We are truly saddened by the senseless act of violence that occurred outside of Union Station at the conclusion of today’s parade and rally,” the statement read. "Our hearts go out to the victims, their families, and all of Kansas City."

The statement also noted their close coordination with the Mayor's office and Kansas City PD.

"At this time, we have confirmed that all our players, coaches, staff and their families are safe and accounted for," the statement continued, expressing gratitude to local law enforcement and first responders for their assistance.

Chiefs players such as Patrick Mahomes and his wife, Brittany Mahomes, Austin Reiter, Drue Tranquill, Justin Reid, and others also shared their condolences for the victims.

In his post, Travis Kelce expressed being "heartbroken" by the incident.