Police said that the actress was unharmed, after a black Audi she was riding in collided with a bicyclist.
Hathaway, 27, was not driving the vehicle and was sitting in the passenger seat at the time of the collision.
"She was a passenger in a vehicle that was making a turn in West Hollywood around 1 p.m. when a bicyclist hit their car," Sgt. Dave Valentine of the West Hollywood Sheriffs Department told the mag. "It doesn't appear the driver was at fault. She was interviewed as a witness. The bicyclist had minor injuries and refused help from paramedics. The incident is still being investigated."
According to E! Online, Freddy Ferraro, the 32-year-old riding the bike, suffered only minor injuries and refused any medical attention.
A rep for Hathaway was not immediately available for comment on the incident when contacted by Access Hollywood.
Related Content from AccessHollywood.com:
VIEW THE PHOTOS: Anne Hathaway
PLAY IT NOW: Variety's Power Of Women Luncheon: Hathaway, Applegate, Weaver & Aguilera Attend
PLAY IT NOW: Oscars Red Carpet 2009: Anne Hathaway Talks 'Rachel Getting Married'