Delivery vans belonging to Amazon are blocking public spaces en masse near its Northampton warehouse, neighbours have complained.
The multinational company said it will investigate after people living in Grange Park became weary of vans parking from as early as 5am in spaces intended for supermarket, GP and dental surgeries, shops and a nursery.
Some days have seen only three spaces left come 9am.
One neighbour said: "No one can park in the supermarket car park during the day sometimes and they line the surrounding roads.
"Amazon will not allow them to park on site.
They are also parking around the Harvester, Holiday Inn Express areas and anywhere without double yellows.
This has been every day for the last week or more. it's unacceptable."
A spokesman for Amazon said it would look into the complaints.
He said: "We take seriously any concerns raised about congestion around the building and are working to resolve any issues as quickly as possible."
It is understood parish councillors have been in touch with managers at Amazon warehouse who said they are looking at alternative arrangements based in the Sixfields area.