KUSA - A Center for Disease Control team arrived in Colorado to help with the investigation into the synthetic marijuana that has been linked to dozens of illnesses and possible deaths.
Federal officials will be assisting the state health department and other local public health agencies.
The University of Colorado Hospital says 15 people have been admitted since Friday because of problems related to synthetic marijuana, which also goes by the names Black Mamba or Spice.
Since August 29, at least 39 people have been admitted because of the drug.
The total number of patients around the metro area is at least 85 with three reported deaths.
DEA Special Agent In Charge Barbra Roach says it's very strong, much more potent than regular marijuana.
Roach also said the substance used to come from Europe and now it's coming from China.
Doctors and police are trying to find the source of the drug.
(KUSA-TV © 2013 Multimedia Holdings Corporation)