Lyon County authorities are trying to fill in the gaps after a reported arson last week.
Undersheriff John Koelsch says roughly 50 acres of grass and a round hay bale were burned Friday night near the north side of Olpe Lake. A dark-colored pickup was seen in that vicinity shortly before the fire was reported.
There is currently no suspect description available.
If you have any information about this crime, contact Crime Stoppers at 342-2273 or the Lyon County Sheriff's Office at 342-5545.
KVOE News reporter AJ Dome contributed to this report.