This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

McINTOSH COUNTY, Okla. (KFOR) – Two Kansans were injured when their lake vessel exploded Saturday afternoon in Eufaula Cove.

Officials say 41-year-old Johnny Marshall and 36-year-old Ashley Jansson were riding an unknown vessel inside the cove when for unknown reasons, the vessel exploded.

Jansson was flown by Tulsa Life Flight to Hill Crest Burn Center with multiple burns and is currently listed in critical condition.

Marshall refused treatment at the scene with burns to his arms, legs and head.

The Department of Public Safety is still investigating the incident.