Lost Submarine Update: Search Efforts Intensify as Oxygen Supply Concerns Rise

The search for the missing Titan submarine, which went down in the North Atlantic two days ago, has entered its second day with multiple vessels and remotely operated vehicles (ROVs) deployed to scour the vast ocean area. The US Coast Guard has warned that the oxygen supply on board the sub could run out by Thursday morning, but experts say the air supply depends on a range of factors.

As the search effort continues, officials have revealed that the submarine's operator, OceanGate, had been warned about potential catastrophic safety problems posed by the experimental vessel. Documents show that the company's testing and certification were insufficient, putting passengers at risk of extreme danger.

The full scope of the search area is twice the size of Connecticut and reaches depths of 2.5 miles (4km). Capt Frederick, a Coast Guard official, said that three search vessels, including one equipped with side-scanning sonar capabilities, have arrived on the scene. More ships and underwater vessels are being brought in to join the rescue operations.

Despite the extensive efforts, experts have not yet identified the source of the noises detected by Canadian P-3 aircraft on Tuesday and again on Wednesday. Analysis has been deemed 'inconclusive,' leaving officials cautious about assuming the sounds originated from the missing submarine.

The five passengers on board the Titan sub had 96 hours of breathable air, according to OceanGate's specifications. However, experts say that oxygen supply is just one factor affecting the air supply, and it remains unclear when or if rescue teams will locate the vessel.

As the search continues, families of the missing passengers are no doubt anxiously awaiting news of their loved ones' fate. The US Coast Guard has pledged to leave no stone unturned in its efforts to find the submarine and bring those on board back safely.

Lost submarine update