Mount Ousley traffic heavy after multi-vehicle crash

7.20am: The accident sites on the M1 Princes Motorway at Mount Ousley have been cleared and traffic has eased.

7.05am: Northbound traffic on the M1 Princes Motorway is heavy after a multi-vehicle crash on Wednesday morning.

Motorists on Mount Ousley Road, near Picton Road, are facing queues up to two kilometres after two separate accidents just before 7am.