MV Dona Paz was a Philippine-registered passenger ferry that sank after colliding with the oil tanker MT Vector on December 20, 1987. Traveling from Leyte island to the Philippine capital of Manila, the vessel was seriously overcrowded, with at least 2,000 passengers not listed on the manifest. Additionally, it was claimed that the ship did not have a radio and that the life-jackets were locked away. However, official blame was directed at Vector, which was found to be unseaworthy, and operating without a license, lookout or qualified master. With an estimated death toll of 4,386 people and only 24 survivors, it remains the deadliest peacetime maritime disaster in history