Nothing like some improvised sea mines in your littoral
Divers and members of the coast guard from Mukalla, along with southern demining experts from the Second Military Division in Hadramout South Yemen successfully removed and detonated explosives planted at the old Mukalla Seaport…
As noted by HI Sutton, “The mines appear to be constructed from two pressurized gas canisters cut in half and welded end-end. The explosive contents and reason why they were not detonated by AQAP have not been revealed.”