Missing Titanic submarine updates — OceanGate sub carrying Hamish Harding still lost as searchers hear ‘banging sounds’

SEARCHERS have detected “banging sounds” while hunting for the missing Titanic tour sub. The submarine vanished on Sunday and time is of the essence as there is only 24 hours of breathable air left on-board the submersible. In a possible breakthrough, searchers said they heard banging in 30-minute intervals while looking for the vessel. The five passengers stuck on the sub are Stockton Rush, Hamish Harding, Paul-Henri Nargeolet and Shahzada and Suleman Dawood. Follow our missing Titanic submarine blog for updates...