According to reps for the Golden Globe winner, she was treated at a nearby hospital and released without suffering any significant physical damage.
"Maura has been released from the hospital with no major injuries," her rep said. "Thank you to everyone who has reached out with their concern."
Tierney, who currently stars on the Showtime drama The Affair, was struck by a car while riding her bike. The vehicle clipped her rear tire, TMZ first reported, along with photos of the accident.
Tierney was treated on the scene by EMTs and placed in a neck brace after telling them she was experiencing back pain. After being loaded into an ambulance, the actress was rushed to a nearby hospital.
Police reportedly believe that the collision was an accident, and that the driver of the vehicle was not under the influence at the time of the incident.