CALEDONIA, Wis. -

A father and his 9-year-old daughter died after the car they were in was rear-ended by a man who police believe was intoxicated.

Police said 39-year-old Kevin Dalley and his daughter, Emily, were killed Friday. A 6-year-old girl who was in the car was injured.

The driver of the pickup truck who rear-ended them was arrested on suspicion of homicide by intoxicated use of a vehicle. The 25-year-old man hasn't been formally charged. Police said he has a prior drunken-driving conviction.