Families mourn passengers killed in sub implosion
- Tributes are flowing for the five men killed on board the Titan sub in what US officials say was a "catastrophic implosion"
- The victims were Hamish Harding, 58, Shahzada Dawood, 48, and his son Suleman Dawood, 19, Paul-Henri Nargeolet, 77, and Stockton Rush, 61
- Their families have expressed "profound grief" and paid tribute to their exploration endeavours
- A robotic diving vehicle found major fragments of the sub on the seafloor about 1,600ft (480m) from the Titanic shipwreck on Thursday
- It's emerged the US Navy originally detected “an acoustic anomaly consistent with an implosion” shortly after the Titan lost contact on Sunday
- Banging sounds reported earlier this week are now thought to have come from other ships in the area
- The sombre find ends a multinational five-day search which spanned more than 20,000 sq km of ocean
