Police released this image Monday of a bear recently spotted in the Vienna area of Fairfax County. (Fairfax County Police)

A caller reported to Fairfax County police a driver struck a bear on the Dulles Toll Road in the Vienna area Saturday, the first seasonal report of a bear sighting in Fairfax County.

A Vienna resident also reported seeing a bear in his backyard in the 1600 block of Fremont Lane around noon on Saturday, Fairfax County police said. It’s unclear whether it was the same bear that was struck on the busy thoroughfare nearby.

Police did not have additional details about the accident on the Dulles Toll Road. A spokesman for the Metropolitan Washington Airports Authority, which operates the toll road, said the authority had no record of such an incident.

Fairfax County police said black bear sightings are not uncommon at this time of year and residents should not be alarmed. They said bears will generally keep moving through an area, unless they find food. Animal control officers do not remove bears from neighborhoods.

Police said residents can take steps to keep bears and other animals away from their homes:

•Do not store trash on porches, decks or in vehicles.

•If a bear is sighted in your neighborhood, remove birdfeeders.

•Take garbage to the curb on the morning of pickup, rather than the night before.

•Consider installing electric fencing around gardens, dumpsters and other potential sources of food for wildlife.

Get updates on your area delivered via e-mail