A mother has died after falling out of a moving car on a motorway while trying to climb into the back to look after her baby, German police say.

The 28-year-old passenger fell out of an open door as she attempted to get between the front two seats into the back to look after her months-old child, officers told the dpa news agency.

Her husband was driving and immediately pulled over on the A96 Autobahn west of Munich, in Bavaria.

It is not clear whether the door was not closed properly or somehow opened as the woman attempted to get into the back.