PITTSBURG, N.H. (AP) – A Massachusetts man who struck and killed a woman with his snowmobile on Saturday has died of the injuries he suffered in the crash.

Dagny Collins, 25, of Haverhill, Mass., was walking on the ice at First Connecticut Lake around 9 p.m. Saturday night when she was struck, authorities said. She was pronounced dead at the scene.

The driver, Michael Carlson, 24, of Templeton, Mass., died Sunday at Dartmouth Hitchcock Medical Center.