An unidentified body was found Friday afternoon in the shallow waters along the shore of the Snake River near Burbank.
People fishing from a boat made the discovery and called emergency dispatchers about 1:45 p.m. Walla Walla County Sheriff's deputies responded and called Columbia Basin Dive Rescue, said Walla Walla County Sheriff John Turner.
Turner would not release any information -- race, age or sex -- about the victim. He said investigators "plan to aggressively pursue the investigation."
"Foul play has not been ruled out, or ruled in," he said. "It's simply too early in the investigation to call."
The body was found near Strawberry Island, between Ice Harbor Dam and Hood River Park in Walla Walla County.
Walla Walla Coroner Rich Greenwood said Dive Rescue pulled the body to shore and then began searching the water for any evidence.
Sheriff's deputies transported the body, enclosed in a yellow body bag, to the boat launch at Hood River Park. They arrived about 5:30 p.m. and the body was placed into the back of a white Chevy Tahoe SUV by Greenwood and Chief Deputy Coroner Allison Barnett.
Greenwood said the body would be taken to a Walla Walla funeral home to await an autopsy.
"We don't have a formal morgue. We use the Walla Walla funeral homes in rotation," he said.
Eric Kiesel, a certified forensic pathologist from Tacoma, will perform an autopsy at noon today, Greenwood said.
Asked if other agencies had been contacted for reports of missing persons, Turner said his office "has reached out to the Coast Guard, the Corps of Engineers, the Fish and Wildlife and other police agencies."