Two days after Denver officials held a press conference regarding new security measures in place at the 16th Street Mall following years of problems, a video surfaced Wednesday night showing another violent incident on what the city says is its No. 1 tourist attraction.

The suspect seen in the video, later identified as 32-year-old Clarence Seeley, was taken into custody for aggravated assault, according to Denver Police. Police are investigating the possibility that Seeley was involved in another assault that happened downtown prior to this one. According to 9Wants To Know, Seeley has been in and out of prison in Indiana.

The incident was reported at 6:07 p.m. by a witness. DPD says officers were on-scene within three minutes. When police arrived on the scene, Seeley dropped the pipe, and officers arrested him without incident. His mugshot will not be released since there are pending photo lineups in this case.

One victim, a 35-year-old man, suffered a head laceration from the assault but refused medical treatment from paramedics.

The video of the incident was first posted online by witness Caleb Bonham, who says it happened near Cleveland Place.

Seeley is seen hitting two people with a large PVC pipe while screaming at them and others. Witnesses tell police Seeley was seen grabbing the pipe off of a nearby construction truck.

Denver Police are continuing to investigate what led up to the incident, and if Seeley knew the people he is seen hitting.

PREVIOUS STORY: 240-step plan to improve 16th Street Mall

The Denver Police Department announced Monday that it is adding more officers to the 16th Street Mall. DPD said Wednesday the increased police presence in the area helped them reach the suspect in the incident seen in the video sooner.

The Downtown Denver Partnership is committing $1-million private funds to roll out a 240-step plan to improve the mall. That includes hiring a private security firm.