
A major chemical incident in St Leonards-on-Sea has thrown the fate of the highly anticipated Hastings Half Marathon into uncertainty. Authorities are expected to decide this evening whether the annual race, scheduled for Sunday, March 23, will proceed as planned.
The disruption stems from a significant public safety operation launched on Thursday when hazardous and explosive chemicals were discovered at a residential property on the A259 Marina road in St Leonards. The discovery prompted an immediate and large-scale response from emergency services, including Sussex Police, East Sussex Fire and Rescue Service, and bomb disposal units.
As a result of the operation, over 70 residents were evacuated, and a 100-meter safety cordon was established around the affected area. The A259 remains closed to both vehicles and pedestrians, causing major disruption in and around Hastings and affecting parts of the half marathon route.
Ongoing Investigation and Public Safety
A man has been arrested in connection with the incident, and investigations into the nature and purpose of the chemicals are ongoing. Sussex Police confirmed that the materials pose a potential explosive threat, which necessitated the extensive emergency response and evacuations.
A spokesperson for Sussex Police stated: “This is a complex and ongoing operation. Our priority remains the safety of the public. We understand the concern this has caused and are working with partner agencies to assess and manage the risk.”
Residents have been offered temporary accommodation, and the local council is working closely with emergency services to ensure everyone affected receives support. More information and updates are being provided through the East Sussex County Council and Sussex Police websites.
Marathon Organisers Await Decision

The Hastings Half Marathon, a popular community event attracting thousands of runners and spectators each year, is directly impacted by the ongoing road closures and safety measures.
Organisers of the event have expressed concern but stressed that public safety remains the top priority. A spokesperson from the Hastings Lions Club, which coordinates the event, said: “We are in constant contact with the local authorities and emergency services. A final decision will be made this evening after the multi-agency meeting. We will notify all participants as soon as possible.”
In the meantime, runners have been asked to monitor official social media channels and the marathon website for updates. Organisers are also exploring potential alternative routes and contingency plans, although any changes would require rapid logistical coordination.
Community Impact and Reaction
Local residents have expressed a mix of concern and understanding. While many are disappointed by the possible cancellation of the event, they acknowledge the seriousness of the chemical incident and the importance of safety.
“It’s a shame because the half marathon is a big event for the town,” said Hastings resident Claire Thompson. “But obviously if there’s a real danger, people’s lives come first.”
Businesses along the A259 have also felt the impact of the incident, with many reporting reduced footfall due to the cordon and road closures.
What Happens Next?

A multi-agency meeting is scheduled for this evening, during which a final decision regarding the status of Sunday’s marathon will be made. Authorities have assured the public that they will be guided by safety assessments and expert advice.
Anyone affected by the evacuation or in need of assistance is encouraged to contact the East Sussex Council emergency line or visit the East Sussex Resilience Forum.
In case of cancellation, organisers have pledged to work with local partners to possibly reschedule or offer refunds to participants. Further details would be shared following the official announcement.
Stay Informed
For the latest official updates, please refer to:
As the town waits for the final decision, the community remains united in its concern for safety and hope for a swift resolution to the incident.