Investigations have begun in the USA and Canada in order to find out the causes that led to intrusion of Titan and resulted in the loss of their lives five passengerswhile the submarine was heading towards the Titanic wreck.

The US Coast Guard announced on Sunday that it is also participating in the investigation, after it convened the Marine Board of Inquiry to investigate the explosion on the submarine. It’s about “higher level of Coast Guard investigation”said the US Coast Guard’s chief investigator, Jason Neubauer.

At the same time, according to CNN, a robot combs the sea floor to locate all the debris from the submarine’s fatal collapse.

The council will work to determine the cause of the catastrophic explosion and deathsas well as to make recommendations “to pursue civil or criminal penalties as necessary”Jason Neubauer said.

For now, the researchers give priority in recovering debris from the bottom of the sea. Military experts found wreckage from the ill-fated submarine about 1,600 feet from the bow of the Titanic on Thursday, the US Coast Guard previously said.

“My primary goal is to prevent a similar incident making the necessary recommendations to strengthen the security of the maritime sector worldwide,” Neubauer said on Sunday.

The rescue operation is coming as questions remain about the design of the submarine, the materials used in its construction, what caused it to explode and when exactly the explosion occurred.

After its investigation the US Coast Guard may“to be deemed necessary”, recommend that criminal charges be brought.

The Titan, a submersible about 20 feet (6.5 meters) deep, dived on June 18 to the Titanic wreck in the North Atlantic, and was due to surface seven hours later. But he lost contact with the ship Polar Prince less than two hours after he left.