Follow CBSDFW.COM: Facebook | Twitter

DALLAS (CBSDFW.COM) – Two men were arrested in connection the recent rash of synthetic cannabinoid, also known as K2, overdoses concentrated in the downtown Dallas area.

Martin Zamora, 22, and Dominick Harrell, 26, were arrested for the 1st Degree Felony of Delivery of a Controlled Substance.

DPD Deputy Chief Narcotics/Vice Division, Vernon Hale said the two were nabbed following an undercover operation. The first positive lab results were returned Tuesday for narcotics that were seized during the Dallas Police Narcotics operations.

“We were able to identify some of the primary dealers, who appear to be targeting youth and the transient population in the downtown area,” said Hale.

They both have a $100,000 bond. Dallas police said they believe the arrests are the first Felony K2-Delivery cases in Dallas County.

Dallas Fire Rescue responded to more than 200 drug overdose calls for synthetic drugs such as K2 and Spice in the downtown Dallas area since December of 2015. The data was collected starting on December 1 and officials said the numbers continue to grow in 2016.

“The dangers are enhanced because dosages of the actual chemical substances vary greatly in every single package that you see,” said Hale. “In high dosages and mixtures, K2 has caused sickness, organ damage brain damage and even death in some cases.”

Synthetic cannabinoids are routinely known as “K2,” “Spice,” “fake pot,” “herbal incense,” “potpourri,” “air freshener,” “aroma therapy products”, etc. Our experience has shown us that high dosages and mixtures of synthetic cannabinoids have caused sickness, organ damage, brain damage and even death.

The dangers of synthetic cannabinoids are enhanced because dosages of the actual chemical substance vary greatly in any given package. Unknown ingredients and cocktails of drugs are reportedly often mixed, and there is no regulation or consistency in the manufacturing process.

(©2016 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)