LITTLE ROCK, (AP) — A man who lost his wife and 3-year-old son in the disastrous flood at a southwest Arkansas campground in 2010 is suing the federal government, saying his family should have been warned about the dangerous conditions.

Adam Jez of Foreman says in the lawsuit filed Wednesday in Texarkana that his wife, 23-year-old Leslie Jez, and son, Kaden Jez, died because the U.S. Forest Service didn’t warn campers, despite the long history of flooding at Albert Pike Campground.

Twenty people, including seven children, died in a flash flood June 11, 2010. Rescuers needed four days to find the last body.