According to TMZ, Nelly and his crew's tour bus was detained and searched by law enforcement officials in Texas last night.
Cops say they found heroin, massive amounts of weed and a loaded gun on the bus. Nelly was on the bus at the time along with other individuals.
More from TMZ:
We're told cops pulled the bus over -- and after performing a search, they found 36 small baggies of heroin (totaling .64 ounces) and over TEN POUNDS of marijuana inside a large green duffel bag (an amount roughly the size of a large bed pillow).
Cops also say they found a loaded .45 caliber pistol.
one of the passengers -- a guy named Brian Keith Jones -- admitted the drugs and the gun were his. He was subsequently placed under arrest.
Nelly and others, with the exception of Jones, were released.