COUNCIL BLUFFS, Iowa (AP) — Authorities say they have found skeletal human remains in a drainage ditch in Council Bluffs. Omaha TV station KETV reports officers found the remains Friday morning just south of the riverfront exit near Interstate 480 in Council Bluffs. The Iowa Division of Criminal Investigation says the remains were of an adult. Police and criminal investigation crews remained on the scene long after the remains were gone, excavating the area in search of evidence. No human tissue had been found as of Friday afternoon. Investigators sent the remains to the Iowa Medical Examiner’s Office in Ankeny, for identification. The results are expected to take several weeks.

Police Sgt. Dave Dawson says officers were following up on a 2-year-old missing person report from Omaha police when they found the remains. The missing person, Chance Fletcher, was last seen in a chase with officers under the freeway bridge. Fletcher would have been 22-years old this year. On Dec. 15th, 2011, Fletcher led several Iowa law enforcement agencies on a high-speed vehicle chase that ended when he wrecked off of I-480 and fled on foot. Authorities searched the area for two hours with police canines that day but were unable to find the suspect. Fletcher’s family confirmed that he hasn’t been seen since that day. In March of 2012, he was entered into National Missing and Unidentified Persons Database.