A woman was killed Monday afternoon after she was struck by a car while walking her dog, according to the Westminster Police Department.

Police said the crash happened just after 3 p.m. on southbound West 100th Avenue at Federal Boulevard. The driver stayed at the scene and is cooperating with the investigation, police said.

The victim was crossing the street when she was struck by the car, police said. It is unclear whether she was using a crosswalk. Police said the driver wasn’t believed to be speeding or under the influence of drugs or alcohol.

No charges have been filed against the driver as of Tuesday afternoon, police said.

No one else was injured in the crash; however, the woman’s dog ran away from the scene and has not been found. The dog’s name is Zoe and she is a white poodle, police said.

Zoe was last seen running west from Federal Boulevard into a nearby neighborhood. Anyone who sees Zoe is asked to call the police department at 303-658-4360.

The identity of the victim will be released by the coroner’s office in the coming days.

The investigation into the crash is ongoing. Anyone with information is asked to call Metro Denver Crime Stoppers at 720-913-7867. Tipsters can be anonymous and are eligible for a $2,000 reward.