Norwegian shipowner Boa is expanding its fleet with an order for up to two semi-submersible barges in China. Dalian Shipbuilding Offshore Co will deliver the in-house-designed Boabarge 39 in the third ...

One of the most challenging trends to combat is the use of ships and submarines to transport ... often referred to as "narco-submarines." These semi-submersible or fully submersible vessels ...

The navy posted video of the operation, including footage that shows a spotlight shining on the semi-submersible. Another clip shows a naval ship returning to port and officers unloading large ...

Russia's Defence Ministry said Ukraine had attempted what it called "a terrorist attack on Russian civilian transport ships using semi-submersible naval drones". It said Russian patrol boats and ...