Cargo Ship Capsizes in Violent Seas as Rescue Helicopter Records Final Moments North Atlantic Ocean — A cargo ship issued a mayday call after losing stability in heavy seas, and dramatic footage from a rescue helicopter shows the vessel rolling onto its side before disappearing beneath the waves. The video, filmed from inside the cockpit of a responding helicopter, captures towering swells crashing over the ship as stacked cargo containers shift and slide. Within moments, the vessel lists sharpl