Wichita ? Two men were killed and four others were hurt when a speeding boat hit the shore of Wilson Lake in central Kansas.

The Kansas Wildlife and Parks department said the boat was filled with members of two families from Wilson when the accident happened Saturday evening.

The crash killed the boat’s driver, Brad Schaan, 38, and passenger Jerry Small, 39, according to Wildlife and Parks boating officer Jim Cherry.

Two women and a 13-year-old girl were taken by air to Wesley Medical Center in Wichita.

A hospital receptionist said Cynthia Schaan, 43, was in serious condition Sunday, and Loretta Small, 49, was in critical condition. The girl, identified as Tiffany Schaan, 12, was in fair condition.

A boy also was hurt during the accident but he was not taken to Wichita.

Cherry said he did not yet know why the boat hit the shore, or how fast it was going.