Dakota, 29, was walking along the side of the street in Los Angeles on Tuesday (12/09/08) when she stepped off the curb and was struck by a moving vehicle.
Following the incident, she was rushed to the city’s UCLA Medical Center to be treated for her injuries, but died on Wednesday (12/10/08).
Gossip website tmz.com, who first reported the story, say the incident is now being investigated by the Los Angeles Police Department (LAPD) but so far no arrests have been made.
Macaulay shot to fame aged 10 when he starred in ‘Home Alone’ in 1990. He has since starred in films including ‘Home Alone 2: Lost In New York’ and ‘My Girl’.
His most recent film was ‘Saved!’ in 2007. He was recently reported to have signed up to appear in upcoming US TV show ‘Kings’.
Macaulay, 28, is currently dating ‘That ‘70s Show’ actress Mila Kunis.