A 61-year-old Topsham woman remained in intensive care Saturday night at Maine Medical Center in Portland after the motorcycle she was riding collided with a car Friday afternoon in Brunswick.

Brunswick police said Dulcie Witman was headed west on Pleasant Hill Road when a car driven by Summer Dupuis, 21, also of Topsham, crossed the road into her path at about 4 p.m. Friday.

Police said Witman, who was wearing a helmet, suffered “multi-systems trauma.” Dupuis was not hurt.

The crash remains under investigation, police said.