A man has been arrested after he allegedly assaulted his pregnant partner and a 10-month-old child before fleeing the scene with the baby.

The 25-year-old man from Wodonga was arrested by members of the Special Operations Group on the Hume Highway near Donnybrook, north of Melbourne, about 6pm and was taken to hospital for treatment of minor injuries. He is yet to be interviewed.

Police chase a man on the Monash Freeway, after he allegedly assaulted his partner and took a 10-month-old baby. Credit:ABC

The baby, who was found safe and well, was also with the man. The child did not require any medical treatment.

Two other males were also arrested at the service station. A 20-year-old Skye man and a 22-year-old Langwarrin man are assisting police with their inquiries.