Police are investigating a vehicle crash on the M1 (Pacific Highway) near Lake Macquarie today (Sunday 22 March 2015.)

About 12:15am, a boat was being towed along the M1 near Mandalong when it came adrift and stopped across two lanes.

A Toyota Camray also travelling along the M1 crashed into the boat.

Police from Lake Macquarie Local Area Command were contact and commenced an investigation.

A female passenger was treated by Ambulance Paramedics at the scene for minor injuries.

Officers investigating the matter are appealing to anyone who may have witnessed the incident to contact Lake Macquarie Local Area Command on 02 4922 4699.