The Maine teenager who was severely burned Sunday while pouring flammable liquid on a campfire remained Monday in critically stable condition at a Boston Shriners Hospital, according to a hospital representative.

Jennifer Engstrom, 16, of Parkman suffered second and third degree burns on 45 percent of her body early Sunday morning, according to Stephen McCausland, Maine Department of Public Safety spokesman.

The girl was pouring either gasoline or kerosene onto a campfire from a plastic container when flames swept over her and ignited the jug in her arms.

The teenager was visiting relatives in Corinna when she decided to use a flammable liquid to enlarge a backyard campfire. Relatives quickly smothered the flames with wet blankets and poured water over her, McCausland said on Sunday.

Engstrom was rushed by ambulance to Eastern Maine Medical Center in Bangor and then flown by helicopter to Massachusetts General Hospital in Boston.

She was treated and moved to the Boston Shriners Hospital.

The teenager just finished her sophomore year at Piscataquis Community High School, where she has been a cheerleader, SAD 4 Superintendent Paul Stearns said Monday.

Initial reports from state fire marshals said Engstrom is from the 800-person town of Parkman.