Wealden District Council confirmed the presence of a shipping container at Pevensey Bay.
It also said that polystyrene foam had appeared on the beach there.
A spokesperson for Wealden District Council said: “We are aware that a container has washed ashore at Pevensey Bay, and there is a strandline of polystyrene along much of the bay.
“We are working with our cleansing contractor to remove this debris as a priority. We are also making arrangements to remove the container once the tide has dropped.
“We are working with partner agencies and neighbouring authorities and would urge the public to take extra care if they are visiting the coastline.”
It is the latest in a number of shipping containers to wash up in Sussex.
Yesterday, shipping containers washed up on Seaford Beach, with tins of milk left strewn along the shoreline.
The coastguard said that it received reports of three shipping containers at Seaford yesterday morning, with an additional container reported to be floating near Littlehampton.
There have also been reports of pieces of plastic insulation foam washing up at Camber Sands and Hastings beaches.
Member of Parliament for Hastings, Rye, and the villages, Helena Dollimore MP, said: “It has been alarming to see plastic insulation foam wash up on our coastline from Hastings to Camber this morning.
“I have spoken to the Environment Agency and the company responsible for this spillage.”
A separate container washed up on Elmer Beach, near Bognor Regis, on Monday, January 12.
Multiple containers also washed ashore along the Sussex shoreline in December 2025, after falling from the cargo ship Baltic Klipper.
Sixteen refrigerated shipping containers were lost overboard from the Liberia-registered Baltic Klipper on December 6, 2025, in the Solent during rough seas as the vessel prepared to enter Portsmouth, about three nautical miles east of the Isle of Wight.
More recently, a total of 24 containers went overboard from two vessels off the Isle of White during the recent Storm Goretti.
There has not yet been any confirmation if the containers that have washed up at Elmer and Seaford are related to the Baltic Klipper or Lombok Strait.
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