Guidance

MGN 323 (M+F) Amendment 1 Explosives Picked Up At Sea

Published 17 November 2023

Key Points

  • Explosive weapons are dangerous even if they have been in the water for many years.

  • Suspected explosives should NOT be deliberately landed on deck.

  • If explosives are accidentally taken on board, then under no circumstances should attempts be made to clean, open or tamper with the weapon in any way.

  • Always inform the Coastguard by radio IMMEDIATELY.

Trawlers, dredgers and other vessels involved in seabed operations may on occasion pick up discarded explosives. Detailed advice about handling those explosives is contained in Annual Notice Number 6 of the Annual Summary of Notices to Mariners published by the United Kingdom Hydrographic Office. That advice is reproduced in the ANNEX to this Notice at paragraphs 1 to 6 and 7 to 10, with further detailed advice from the Royal Navy Explosive Ordnance Disposal Unit paragraphs 6(a) to (g).

More information

HM Coastguard
Maritime and Coastguard Agency
Spring Place
105 Commercial Road
Southampton
SO15 1EG

Telephone: +44 (0)203 8172000

Email: SAR.response@mcga.gov.uk

Website: www.gov.uk/mca