Authorities in western Iowa say two Council Bluffs men were arrested for beating another man before dumping his body into the frigid Missouri River. Members of the Omaha police SWAT team surrounded a house near 23rd and Manderson Streets in Omaha Thursday before arresting the two suspects, 25-year-old Jeremy Gibler, and 32-year-old David Maddox.

Both men were charged with attempted first-degree murder, first-degree robbery and first degree kidnapping. Their bonds were set at $750,000 each. The man are accused of beating and robbing 26-year-old Council Bluffs resident Rodney Koehrsen early Thursday morning. Investigators said the men used rocks to beat Koehrsen before tossing him into the river.

Koehrsen was able to make his way to shore and walk more than a mile to a gas station and get help. The man was taken to Mercy Hospital in Council Bluffs for treatment, and later released. Investigators have not released a motive for the attack.

By Ric Hanson, KJAN, Atlantic