SEQUOYAH COUNTY, Oklahoma - The Sequoyah County Sheriff’s Office confirmed it is now treating a missing hiker investigating as a homicide.

Sheriff Ron Lockhart said stories of people hiking with Matthew Fagan are not adding up. He also said two persons of interest are in custody, being held on unrelated charges.

Lockhart said they are still searching the area around Lake Tenkiller where Fagan was hiking and have used dive teams to search the lake.

Fagan was last seen around 3:30 p.m. on June 21 near Cato Creek.

Authorities say he was hiking with three other people but decided to go back to the car before his friends. When the others returned, he wasn’t there.