Residents in Gosport are being warned that a nuclear siren is due to sound at HMNB Portsmouth tomorrow.

The alarm is set to sound at 9:30am tomorrow, Wednesday, October 5, and will last for around one minute.

Siren tests are part of the Royal Navy’s nuclear accident response plan for the naval base.

These routine tests are accordance with regulations from Portsmouth City Council and Gosport Borough Council - which is outlined in the local authorities’ nuclear safety plan.

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In a statement issued to the media earlier this year, a HMNB Portsmouth spokesperson said: “It is a statutory requirement to test the alarm three times a year and this test is being conducted in agreement with Portsmouth and Gosport local authorities.

“The two-tone siren will be sounded for one minute for the test.”

Residents in Gosport are being warned ahead of the alarms sounding to avoid any potential panic.