Children among 4 dead after farm tractor rolls over as it pulled a dozen people in a trailer, Pennsylvania police say

YORK COUNTY, Pa. – A woman and three children have died and more people were injured after a farm tractor pulling an open flatbed trailer overturned in south-central Pennsylvania late Friday morning, authorities said.

The crash occurred around 11:30 a.m. when an "older-model farm tractor" pulling a trailer carrying a dozen people traveled off the roadway and over an embankment, causing the tractor and trailer to roll, according to a Pennsylvania State Police press release.

The four who died have been identified by the York County Coroner's Office as 36-year-old Katie Ann Stoltzfus, her daughters Mary Etta Stoltzfus, 14, and Naomi Rose Stoltzfus, 7, along with Caleb Emmanuel Fisher, 9.

All died of multiple blunt force trauma, and authorities said the deaths have been ruled accidental. 

Nine others were taken by ambulance or helicopter to local hospitals, police said.

The incident happened in Lower Chanceford Township in southern York County, about 60 miles west of Philadelphia.

An adult man who was driving the tractor was also transported from the scene and was in serious condition.

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State police said the man driving the tractor pulling the trailer lost control before traveling off the road.

No other vehicles were involved.

"Our hearts go out to the families of the juveniles and all the individuals involved," Lt. Adam Reed said during a news conference. "It's a very tough day for everyone down there."

Contributing: The Associated Press.