Multiple state and federal law enforcement agencies were seen Wednesday morning conducting an investigation on Longhollow Road, but information on the focus of the probe remains hush-hush until the OSBI confirms the agency has opened what was described as a “full investigation into the disappearance and possible homicides of Molly Miller and Colt Haynes in south central Oklahoma.”

Jessica Brown, OSBI public information officer, said District Attorney Craig Ladd made a formal request for the full investigation shortly after noon Wednesday.

The formal press release continued, “A friend last heard from them (Miller and Haynes) via phone July 8, 2013. July 25, 2013, the Wilson Police Chief requested OSBI technical assistance and analytic case support. OSBI has helped run dozens of leads in the past 12 months, as have numerous other municipal, county, state and federal law enforcement agencies. Leads recently surfaced that could prove helpful in this case. OSBI agents and various other law enforcement officers are currently running those leads. Because this is an open criminal investigation, no specific details on this case can be released at this point. Miller was 17 at the time of her disappearance; Haynes was 21.”

Brown said the investigation spanned both Carter and Love counties.

Earlier Wednesday, Capt. Ronnie Hampton, commander Oklahoma Highway Patrol Troop F headquartered in Ardmore, confirmed multiple law enforcement agencies were on Longhollow Road in Love County.

“An investigation started late Tuesday on Longhollow Road, and I anticipate it will continue for several days,” Hampton said, declining further comment.

Ladd also confirmed an investigation was under way, but reserved comment.

Miller and Haynes were last seen July 7, 2013, in a car driven by Con Nipp, which was involved in a high-speed chase that started in Wilson and crossed the Carter/Love county line. The wreckage of the car was found two weeks later in Love County.

Tuesday, Nipp pleaded guilty to charges connected to the high-speed chase and was sentenced to 10 years in prison, followed by 10 years of probation.