An overturned circus trailer has dumped a pile of arcade games onto Hendon Way.
The road’s southbound carriageway has been closed for more than an hour since the trailer became detached from the vehicle towing it and fell over, spilling its contents onto the road.
Police have cordoned off the road which is covered in broken glass and piles of smashed games.
It is believed that the vehicle towing the trailer did not stop.
The road is closed from the junction outside Hendon Central tube station to the junction with the North Circular.
Bus routes 113, 143, 186 and 326 are on diversion.
Drivers are being warned to expect long delays.