The MS Stockholm Incident refers to a maritime collision that occurred on July 25, 1956, between the Swedish passenger liner MS Stockholm and the Italian ocean liner Andrea Doria off the coast of Nantucket, Massachusetts. The accident resulted in the sinking of the Andrea Doria, leading to the loss of 46 lives, while the Stockholm sustained significant damage but remained afloat. The incident highlighted issues related to maritime navigation and safety protocols. Following the collision, investigations revealed that both vessels had been navigating in foggy conditions, which contributed to the tragedy. The event prompted changes in maritime regulations to improve safety measures for passenger ships.