A spokeswoman for the FBI said Wednesday that authorities are not aware of any connection between the abduction of Sidney school teacher Sherry Arnold and the suspicious death of an oil field worker.

The body of 49-year-old Brian Doyle was found Jan. 20 in a ditch along U.S. Highway 2 near Bainville.

Arnold has been missing since Jan. 7, although two men have been charged with her kidnapping.

Roosevelt County Sheriff Freedom Crawford identified Doyle on Wednesday as a resident of Florida who until two weeks ago worked for a North Dakota oil field maintenance company.

In a press release, Crawford said "foul play has not been ruled out" by authorities investigating Doyle's death.

Crawford did not release any more information, including how Doyle died and how long he may have been dead.

Crawford did announce the creation of a tip line and asked the public to send any information about Doyle's death to www.rcso17.org.

Meanwhile, the search continues for Arnold's body in the same general area where Doyle's body was found.