WAGONER COUNTY, Oklahoma - Deputies made more arrests Tuesday as they work to root out what they call Wagoner County's biggest drug dealers.

Eight suspected drug runners were walked through downtown Wagoner in their striped jail jumpsuits Friday. Four more drug suspects were arrested Tuesday.

Michael Thomas Jenkins, 31; Sammy Dean McKinney, 39; and Jennifer Lee Willis, 27, were arrested at a home in the 700 block of South Lincoln in the city of Wagoner.

Roy Gene Jenkins Jr., 40, was arrested at his work, Keystone Chevrolet in Sand Springs. He is wanted for intent to sell drugs near a school.

Wagoner County deputies have been working undercover, even posing as criminals inside their own jail.

Eighteen people have now been arrested because of the undercover operation.