Pregnant Woman Dead After Falling From Moving Car, Man Arrested

A woman is dead and her baby who was born via an emergency C-section on Saturday is in a critical condition, after the woman fell from a moving car north-west of Melbourne.

Police said an incident between the woman and a man began at around 1pm when it's alleged the man threatened to assault the woman at a Kiwi Retreat home.

The pair then got into a car before the woman fell out of the vehicle and onto the road as it was driving around a corner, police said.

Police and paramedics were on the scene. Photo: Network 10.

The woman, 32, was airlifted to Royal Melbourne Hospital after suffering "life-threatening injuries".

When she arrived, the woman delivered a baby via c-section, before she died a short time later.

The baby was transferred to the Royal Women's Hospital next door where it remains in a critical condition.

The woman's pink Ugg boots were strewn on the ground. Photo: Network 10.

A 35-year-old Keilor Downs man has been arrested by police and is currently assisting with their enquiries.

If you or someone you know is in immediate danger, dial 000. If you need help and advice, call 1800Respect on 1800 737 732, or Lifeline on 13 11 14.