The woman who was struck by a car while walking her dog Friday night on Fairbank Road was reported in stable condition Saturday night.
Maya Novak, 66, of 304 Maynard Road, was taken to Beth Israel Deaconess Hospital in Boston with possible life-threatening injuries, according to the Sudbury Police Lt. Robert Grady.
A nurse on Novak's floor reported her latest condition Saturday night.
Heather Merrill, founder and director of New England Pet Hospice who was on the scene, helped with the dog and brought him to IVG MetroWest in Natick.
According IVG's Jocelyn Hamley, the dog was in critical condition as of earlier Saturday. He was put on pain medication and was waiting for a blood transfusion.
The vehicle that struck Novak and her dog stayed at the scene Friday night and the operator was identified to police.
The crash is currently under investigation by the Sudbury Police Department and the Massachusetts State Police.
The crash caused Fairbank Road to be closed in the area of the crash for 3 1/2 hours.