At approximately 11:51 a.m. on Tuesday, March 23, a sergeant with Navajo County Sheriff’s Office Criminal Interdiction Unit conducted a traffic stop for traffic violations on Third Street in the Winslow. A search of the vehicle revealed 16 sandwich bags containing blue pills labeled M30. The pills are suspected of being fentanyl. It is estimated that there are approximately 16,000 pills with an estimated street value of approximately $500,000. Felipe Guadalupe-Guerrero, 25, and Juan Francisco Estrella-Valdez, 22, both of California, were arrested for possession of a narcotic drug, possession of a narcotic drug for sale and transportation of a narcotic drug. Both men were booked into Navajo County Jail and each are being held on a $25,000 bond.