TOPSHAM, Maine — A Durham woman suffered life-threatening injuries Friday afternoon in a two-car crash that sent four people to Maine Medical Center.

Christina Babnaw, 44, of Durham was traveling north on Route 24, also known as Middlesex Road, when the red 2009 Toyota sedan she was driving veered off the right-hand side of the road, drove back onto the road and crashed head-on into a green 2008 Hyundai SUV driven by 66-year-old Bruce Hanson of Harpswell, Sgt. Robert Ramsay of the Topsham Police Department said Friday.

Babnaw and Hanson, who were pinned in their vehicles, needed to be extricated by Brunswick and Topsham firefighters.

Babnaw’s passenger, 21-year-old Joshua White of Durham, suffered a broken pelvis.

Both White and Hanson’s passenger, 22-year-old Taylor Hanson of Harpswell, were able to get out of the vehicles on their own.

Their conditions were not available Friday evening.

The crash occured near the Bowdoinham town line, in the 800 block of Middlesex Road.

“It appears that somewhere down the road, [Babnaw] turned around to go after someone going northbound and [was] going at an excessive speed trying to catch the person,” Ramsay said. “She lost control, went off the right side, came back, overcorrected and hit the other driver head-on.”

Neither Babnaw nor her passenger, White, were wearing seat belts, Ramsay said.

Route 24 south of Foreside Road was closed for about four hours Friday afternoon. Brunswick police and fire personnel assisted at the scene.