The daunting search and rescue effort for the Titan is rushing experts and specialized underwater equipment together by land, by air and by sea to find the submersible before its oxygen runs out.

A remotely operated vehicle that can scan the sea floor, known as an ROV, was flown to Canada on Tuesday and is expected to arrive at the Titanic site on Thursday morning.

“The equipment that is onsite and coming is the most sophisticated in the world and certainly capable of reaching those depths,” said Sean Leet, chief executive of Canadian Horizon Maritime company.

The company and the Mi’kmaq band co-own the Polar Prince, which is the research vessel that launched the Titan.

“We are praying for our friends onboard the Titan submersible,” said Miawpukek First Nation Chief Mi’sel Joe. “We want them to come home safely. We ask everyone across Canada and the world to pray with us that we can find and rescue the Titan.”