A major emergency response is underway in St Leonards, East Sussex, after explosive chemicals were discovered inside a residential property on the A259 Marina.

Authorities have declared the situation a critical incident, prompting the evacuation of all homes within the cordoned area amid a confirmed threat to life.

Police and emergency services are at the scene, with bomb disposal units, fire crews, and specialist hazardous materials teams working urgently to assess and secure the site.

A spokesperson for Sussex Police said: “We are dealing with a significant incident involving potentially explosive substances. We have taken the precaution of evacuating nearby properties to ensure public safety.”

Evacuation and Road Closures

Residents in the immediate vicinity have been asked to leave their homes immediately and follow police instructions. A rest centre has been set up to accommodate affected individuals and families.

The A259 Marina and surrounding roads have been closed, and diversion routes are now in place. Drivers and commuters are being urged to avoid the area entirely and expect disruption throughout the evening.

Public Urged to Stay Away

Authorities have stressed that while the situation is under control, the incident remains dynamic and potentially hazardous. Locals are being asked to remain patient and allow emergency teams to carry out their work safely.

“Our priority is the safety of the public. We ask everyone to remain calm, cooperate with officers, and stay away from the area until further notice,” added the police spokesperson.

Further Updates Expected

Emergency services are expected to release more details as the operation progresses. Investigations into how the chemicals came to be in the property are already underway.

Residents with concerns or in need of assistance are advised to contact local authorities or visit the rest centre for support.