The mass shooting incident at Club Q also left 18 people hurt.

Authorities received “numerous” 911 calls starting at 11:57 p.m. and responded to the scene, Colorado Springs Police Lt. Pamela Castro told CNN.

“They did locate one individual who we believe to be the suspect inside,” said Castro. “At this point in time, the suspect is being treated, but is in custody.”

However,  Castro did not clarify whether the suspect was included in the count of people who were injured in the shooting.

In a statement,  Club Q said: "Club Q is devastated by the senseless attack on our community."

"Our prays and thoughts are with all the victims and their families and friends. We thank the quick reactions of heroic customers that subdued the gunman and ended this hate attack," read the statement.