A person has died after falling from the Hobsonville Road overbridge on to the Northwestern Motorway this afternoon.

Photo: Google Maps

Police said they were responding to the incident, which was reported just before 3.15pm.

The overbridge has now reopened to motorists and pedestrians as well as citybound lanes underneath the overbridge.

Initially, traffic on SH16 was being diverted at the intersection of Brigham Creek Road and Fred Taylor Drive, and citybound traffic on SH18 was also being diverted at Brigham Creek Road.