The car park at a former Toys R Us store in north London has become a 40ft-long fly-tip.
A report in the Standard newspaper said the dumped debris includes a toilet, a rusting drinks machine, rotting wood, old furniture, building waste and mattresses.
The land outside the closed store is adjacent to the North Circular Road and near to the Brent Cross retail complex, though not part of it.
A Barnet Council spokesman said: “This particular fly-tip has taken place on privately owned land. We have been working closely with the police and the owner responsible for the land in recent weeks to make sure the site is secure, and with the Environment Agency (EA) which is leading on the investigation into this fly-tipping. Responsibility for removing the waste lies with the land owner.”
Toys R Us entered administration in March and all its stores closed in April. Administration firm Moorfields has been approached for comment.
An EA spokesman said: “We would like to hear from anyone with information about waste dumped illegally at Tilling Road in Brent Cross.
“Illegally abandoned waste can cause considerable harm to the environment, and we employ highly trained enforcement officers to pursue those who selfishly blight communities in this way.”