New Delhi: The steel arch Francis Scott Key Bridge in Baltimore, Maryland, US collapsed into the Patapsco River early Tuesday morning after a main pillar was struck by a cargo ship. Six people who went missing are now presumed dead and the US Coast Guard has said the search for survivors has been suspended. These were six people who were working on the bridge, according to NBC News. Their names have not been released.Roland L. Butler Jr., superintendent for Maryland State Police, said that the search and rescue mission was transitioning to one of search and recovery.Videos shared on social media showed multiple vehicles falling into the river after the collision. The incident took place at 1:35 am local time, according to Baltimore police.After the incident, the Synergy Marine Group confirmed that its Singapore-flagged vessel Dali with two pilots onboard collided with one of the bridge’s pillars, according to Reuters news agency. According to the vessel information provided by the Synergy Marine Group, the crew was “all Indian, 22 in total”, and all of them are accounted for.There were no injuries onboard, a Synergy statement said, adding that the cause of the incident had yet to be determined.Danish shipping company Maersk later announced that it chartered the Dali vessel. Officials said they were still investigating the cause of the incident, but ruled out terrorism.The 1.6-mile (2.57 kilometer) bridge, which was completed in 1977, spans a wide section of the Patapsco River at the entrance to a busy harbour in southern Baltimore on the US east coast. While the cause of the ship crashing into a major Baltimore bridge is under investigation, Governor of Maryland Wes Moore told a media briefing that the container ship lost power before colliding with the structure.Moore said that the vessels operators had issued a mayday call in the moments before the collision.It was moving at a “rapid” eight knots (9 miles per hour), alerted authorities that it had lost power allowing officials to limit traffic on the bridge before the crash.“I’m thankful for the folks who — once the warning came up and once notification came up that there was a mayday — who literally by being able to stop cars from coming over the bridge. These people are heroes, they saved lives last night,” Moore said.(With inputs from DW)