(CBS) - A celebratory gathering of marijuana enthusiasts on "4/20" turned sour when shots were fired and two people were injured.
Denver police say one man was shot in the leg and another was wounded with unknown injuries.
Witnesses report three or more shots fired about 20 minutes after the highest point of celebration at 4:20pm.
The massive crowd ran from the park.
The pot celebration Saturday was the first since Colorado and Washington made marijuana legal for recreational use.