Two people are facing drug charges after police conducted an undercover drug sting.

David Frank Lynch Jr. and Zachary Lee Simpson are both behind bars on several drug-related charges.

Watauga County Sheriff's and Boone police officers conducted an undercover operation in which they purchased marijuana.

Following the undercover operation, a search warrant was executed.

Detectives seized 593 grams of marijuana.

The marijuana had an estimated street value of $4,000 - $6,000. 

Both men are being held at the Watauga County Detention Center on a $10,000 bond.