WARSAW (Reuters) - An 18-month-old child started the family car and ran over three family members in a southern Polish village Saturday, police said.

"The child somehow started the car, whose keys had been left in the ignition, and it began reversing," police spokesman Adam Jachimczak said.

The child's mother, who tried to stop the car, and her four-year-old daughter, got run over by the vehicle which pinned the grandfather against the wall of a barn.

The four-year-old, who suffered the most serious injuries, was rushed to hospital together with her mother and grandfather who were also hurt, Jachimczak said.