Evening Update: Search for missing submersible intensifies after underwater noises detected

Good evening, let's start with today's top stories: Crews were hoping to narrow down the area of the search for the missing OceanGate Titan submersible and its five passengers after a Canadian surveillance vessel detected underwater sounds. U.S. Coast Guard officials were bringing in more ships and vessels to search the area, though the exact location and source of the sounds was unclear. A robotic vessel was sent to scour the region but had so far "yielded negative results," the Coast Guard wrote on Twitter. While the sounds sparked optimism, many barriers remain in recovering the vessel. Its location has…