This is the first photo of father and son Shahzada and Suleman Dawood who are missing following the disappearance of the submarine taking tourists to see the Titanic wreckage.
The 48-year-old dad, a prominent Pakistani businessman, and his son were identified as being onboard the vessel by family and colleagues.
It is understood from the vessel's operator, OceanGate Expeditions, the submarine had a 96-hour oxygen supply in case of emergencies - meaning the people on board have around two days of "life support" left.
