Three men were left injured after gunfire erupted at Posh Ultra Nightclub and Lounge at 4040 E. Evans Ave. early Sunday morning after celebrating Halloween.

The club is located 1.3 miles from campus near Colorado Boulevard.

While police were investigating, gunshots also were heard from the McDonald’s on South Colorado Boulevard and East Evans Avenue about 30 minutes later.

Police responded to the report of gunfire at the club around 2:45 a.m. In the parking lot they found two men suffering from gunshot wounds. They were transferred to Denver Health for treatment. One was in critical condition.

According to Sonny Jackson with the Denver Police Department, the shooting occurred after a conflict began in the parking lot.

“A conflict arose between two groups in the parking lot and escalated,” said Jackson.

When contacted, the nightclub’s phone was turned off and the message box full. When police arrived at the McDonald’s a car was speeding out of the parking lot.

Officers captured the two men in the car and arrested them.

“The two men are in custody for alluding the police but it is unknown if they are connected with the gunfire,” Jackson said.

Police said it is still unknown whether the two shootings are connected.

The two victims found at the scene remain in the hospital, one in critical and one in serious condition.

The third victim later went to the emergency room at Rose Medical Center and was treated for gunshot wounds to the leg.

Police identified all of the victims as black males in their 20s. Their names have not yet been released. Investigators are still unsure who fired the shots. The incident is still under investigation and there may be more arrests to come.

Anyone with information can contact Crime Stoppers at 720-913-STOP.