Umar Farouk Abdulmutallab (also referred to as Umar Abdul Mutallab and Omar Farooq al-Nigeri) popularly referred to as the "Underwear Bomber", attempted to detonate plastic explosives hidden in his underwear while on board Northwest Airlines Flight 253, en route from Amsterdam to Detroit, Michigan, on December 25, 2009.

Umar Farouk Abdulmutallab is the Nigerian Muslim accused of trying to blow up Northwest Airlines Flight 253 as it was about to land in Detroit, Michigan on Christmas Day (25 December) of 2009. According to news reports, Abdulmutallab flew KLM Airlines Flight 588 from Lagos to Amsterdam, then switched planes to the Detroit-bound Flight 253. As the plane neared Detroit, he caused a fire in his seat after spending 20 minutes in the bathroom. A passenger, Dutch filmmaker Jasper Schuringa, noticed the flames and jumped Abdulmutallab, finding a burning syringe. When quizzed by a flight crew member, Abdulmutallab said he had an "explosive device." The fire was extinguished, the plane landed and Abdulmutallab was taken into custody and treated for burns. Authorities say he had sewn a device containing explosive chemicals into his underpants, then used a syringe with an activating chemical to detonate the device, but it failed. Abdulmutallab was indicted on 6 January 2010 on charges that included attempted murder and attempted use of a "weapon of mass destruction." Although it's unclear if Abdulmutallab was involved with militants in Yemen, an audio tape released three weeks after the attack purportedly has al-Qaeda leader Osama bin Laden claiming credit.

Raised in Nigeria and Kenya, Umar Farouk Abdulmutallab went to high school at the British School in Lomé, Togo, where he was known to be religious -- he was nicknamed "Alfa" and "Pope" for his piety. He studied mechanical engineering at University College London in England between 2005 and 2008, and after graduating went to Dubai for more studies