Families of the missing passengers on board the Titanic submarine were given a glimmer of hope after it emerged "banging" noises were picked up by sonar devices.
Rescue teams have just hours left to find the Titan which has Pakistani British-based businessman Shahzada Dawood and his 19-year-old son, Sulaiman Dawood, French submersible pilot Paul-Henry Nargeolet, and chief executive and founder of OceanGate Expeditions, Stockton Rush in the vessel.
On Tuesday, the US Coast Guard confirmed it had heard banging noises on Tuesday night and into Wednesday after the Canadian P-3 aircraft picked up the sound as underwater operations were underway to try and locate the origin of the noises.
