The 1993 World Trade Center bombing occurred on February 26, 1993, when a truck bomb was detonated below the North Tower of the World Trade Center

World Trade Center

The original World Trade Center was a complex with seven buildings featuring landmark twin towers in Lower Manhattan, New York City, United States. The complex opened on April 4, 1973, and was destroyed in 2001 during the September 11 attacks. The site is currently being rebuilt with five new...

 in New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. The 1,336 lb (606 kg) urea nitrate

Urea nitrate

Urea nitrate is a fertilizer-based high explosive that has been used in improvised explosive devices in Israel, Iraq, and various other terrorism acts elsewhere in the world, like the 1993 World Trade Center bombings...

–hydrogen

Hydrogen

Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

 gas enhanced device was intended to knock the North Tower (Tower One) into the South Tower (Tower Two), bringing both towers down and killing thousands of people. It failed to do so, but did kill six people and injured more than a thousand.
The attack was planned by a group of conspirators including Ramzi Yousef

Ramzi Yousef

Ramzi Yousef was one of the main perpetrators of the 1993 World Trade Center bombing and a co-conspirator in the Bojinka plot. In 1995, he was arrested at a guest house in Islamabad, by the Pakistani Inter-Services Intelligence and United States Diplomatic Security Service, then extradited to the...

, Mahmud Abouhalima

Mahmud Abouhalima

Mahmud Abouhalima is a convicted perpetrator of the 1993 World Trade Center Bombing. His red hair earned him the nickname Mahmud the Red.-Life:...

, Mohammad Salameh, Nidal A.