OceanGate's Titan sub briefly became tangled up in the Titanic during a 2022 dive, according to a mission specialist who was on the dive.

The scientific director for the company that owned the Titan submersible that imploded last year while on its way to the Titanic wreckage testified that the sub had malfunctioned just prior to the fatal dive.

During a public Coast Guard hearing on Monday, some unfortunate new details of the Titan submersible disaster have come to light. It's been 15 months since the tiny vessel took off to visit the Titanic shipwreck 12,