half mast out of respect for the five men who died. these are among the last known pictures of the submersible. the polar prince launched it into the atlantic last sunday that contact was lost one hour and 45 minutes later. they notify the coastguard after more than four hours. following an international search lasting days, parts of the sub were eventually found on the seabed near the titanic wreckage. it had suffered a catastrophic implosion. as the polar prince gets ready to dock, this is not the end of its story. the vessel is going to be investigated. there are lots of questions about how, why and when did this disaster happen? the buoyancy tanks used to launch the sub were towed away. inspectors from canada s transportation safety board entered the vessel. they will interview staff and crew. the us coast guard will also be involved. wreckage of the sub will be examined too. it s owner 0ceangate is facing
all five people on board were killed. the ship, the polar prince, returned to port in newfoundland, where officials are gathering information. bbc s nomia iqbal reports. the polar prince made its long journey home nearly a week since it left for the high seas. a flag flew at half mast out of respect for the five men who died. these are among the last known pictures of the submersible. the polar prince launched it into the atlantic last sunday but contact was lost an hour and 45 minutes later. they notified the coast guard after more than four hours. following an international search lasting days, parts of the sub were eventually found on the seabed near the titanic wreckage. it had suffered a catastrophic implosion. as the polar prince gets ready to dock, this isn t the end of its story. the vessel is going to be investigated. there are lots of questions about how, why and when did this disaster happen? the buoyancy tanks used to launch the sub were towed away.