Nine-year-old driving Bobcat tractor runs over 12-year-old brother in Pepperell, Mass.

A 12-year-old boy suffered serious but non-life threatening injuries when he was run over by a Bobcat tractor driven by his nine-year-old brother, cops reportedly said.

In an Associated Press story posted on Boston.com, cops said the accident occurred near 5 p.m. on Wednesday in Pepperell.

The 12-year-old boy was airlifted to Massachusetts General Hospital.