North Korea Tests High-Speed Torpedo as It Expands Naval Capabilities

North Korea has tested a number of new weapons systems in recent weeks, including attack drones and a hypersonic missile, in what is described as an effort to expand the country's naval capabilities.

On Monday, it tested another weapon - a high-speed torpedo - in the Sea of Japan, AFP reports.

The nuclear-armed country has expanded its fleet over the past year, including with new ships.