The MV Dona Paz collided with the oil tanker MT Vector on December 30, 1987. Considered the worst maritime accident in history, 4,286 people perished on the ferry. The awful death toll was caused by massive overcrowding by people returning to their family homes to Celebrate Christmas. Shockingly, only 24 people are known to have survived the inferno after the tanker struck the ferry and burst into flames.