Safety investigators board Titan’s support ship after fatal implosion

Officials from the Transportation Safety Board of Canada board the Polar Prince (Jordan Pettitt/PA)

A team of investigators has boarded the main support ship of the Titan submersible after it returned to the harbour following the deep-sea vessel’s fatal implosion.

Flags on board the Polar Prince were at half-mast as it arrived at the port in St John’s in Newfoundland on Saturday, after four passengers and the pilot of Titan were killed in the incident near the wreckage of the Titanic.