A Denver attorney linked to medical marijuana businesses raided by federal agents last year was among several people arrested Friday as part of the ongoing investigation.

KUSA-TV captured video of David Furtado being led away by agents with his arms behind his back Friday morning.
A spokesman for the U.S. Attorney's Office, Jeff Dorschner, says agents from the Drug Enforcement Administration, Internal Revenue Service and the Diplomatic Security Service carried out the arrests.
Dorschner says the names of the others arrested and the reasons are in an indictment that has been sealed. It could be made public as soon as Monday.
An attorney who represented Furtado after the November raids didn't return calls for comment. The raids came in the weeks before Colorado allowed dispensaries to begin selling recreational marijuana.