Ukraine has opened a new chapter in naval warfare, claiming to have crippled a high‑value Russian submarine with an explosive underwater drone in the Black Sea. The strike, which Kyiv describes as the ...

BEIJING – Searchers will send a high-tech robotic sub to probe the sea floor for missing Malaysia Airlines jet MH370 after failing to pick up additional signals from what is believed to be the plane's ...

The robotic submarine aiding in the search for Flight MH370 resurfaced early for the second time in two days on Wednesday. Officials blamed a “technical issue” for Bluefin-21's early return from the ...