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.

Rush “crashed into the rear bulkhead, the rest of the passengers tumbled about, I ended up standing on the rear bulkhead,” ex-OceanGate scientific director said.

The scientific director of the Titan testified Thursday that the sub malfunctioned days before the failed mission that ended in an implosion, claiming the lives of the crew and prompting an international rescue effort.