The emergency services are set to swarm a Sussex beach to test responses to a hypothetical oil spill at sea.
Coastguard, council staff and environmental agencies will be at Newhaven beach, near the lifeguard hut, tomorrow.
They will be testing their response to a mock scenario involving a coastal oil spill from a wrecked ship.
East Sussex Council has warned that beach-goers may see equipment and response workers throughout the day.
A spokeswoman said: "The incident is to test how partner organisations across Sussex (including emergency services, coastguard, local councils and environmental agencies) would react in the event of a coastal oil spill from a wrecked ship.
"It is part of a regular partnership working by the organisations, as part of the Sussex Resilience Forum, to prepare for, and manage, incidents in the county."
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