Investigators pull submersible debris on shore in hopes of finding clues about catastrophic failure during descent toward Titanic wreck , killing all five on board

Officials say debris found on ocean floor near wreck of the Titanic indicates submersible missing since Sunday was destroyed

Breathable air believed to have run out on lost submersible carrying 5 people to deep sea wreck; robot reaches ocean floor as rescuers search for source of 'banging noises'

Responders focus on area where underwater sounds heard, insist they are 'hopeful' for rescue, as effort hits critical stage with only hours left for 5 people in submersible

But US Coast Guard doesn't elaborate on whether the sounds indicate some of the 5 onboard the Titan are alive, as rescuers scramble to find vessel that has 24 hours of oxygen left

OceanGate Expeditions, which has run annual expedition since 2021, says it is determined to find five people aboard vessel

Defense firm's first foray into autonomous underwater vehicles uses sonar to gather intelligence and detect mines, with enough power to submerged for up to 4 weeks

Reservists and retired former troops accuse Netanyahu of sowing division; military prosecution officials warn legal shakeup could expose politicians, IDF commanders to ICC lawsuits

Revolutionary Guard unveils unmanned subs along with new missiles and speedboats at ceremony in Bandar Abbas

Husband, a Navy nuclear engineer, passed information about American nuclear-powered warships to someone he thought was foreign government representative; wife acted as lookout