A 22-year-old Yukon man was injured when he dove from a pontoon boat into shallow water at Lake Eufaula, according to the Oklahoma Highway Patrol.

Patrick Tanner reportedly stopped his vessel to swim and jumped off the back of the boat into three feet of water, causing a severe back injury.

The incident took place at about 4:30 p.m., near SH9A and Gains Creek Bridge five miles north of Canadian in Pittsburg County, the OHP said.

Tanner was transported by Pittsburg County EMS to Canadian, where he was then flown to St. John’s Hospital in Tulsa in stable condition.

According to the OHP there were nine people on the 2003 Landeau pontoon.