NEW YORK CITY — A Bangladeshi man set off a homemade explosive device in one of Manhattan's busiest transit hubs, in what authorities are calling a terrorist attack. <br /> <br />According to the New York Times,the incident occurred in the underground passageway between the Port Authority Times Square subway stations. <br /> <br />27-year-old suspect Akayed Ullah had strapped a pipe bomb to his body using velcro and zip ties, and detonated the device around 7:20 a.m. <br /> <br />The powder-filled pipe was ignited using a Christmas light bulb, matches, and a 9-volt battery, but failed to detonate properly. One cap was blown off, but the rest of the pipe remained intact. <br /> <br />Ullah sustained burns and lacerations to his hands and abdomen, and was taken to the hospital after being subdued by police. Several others received minor injuries. <br /> <br />The suspect claimed the bombing was done in retaliation to U.S. airstrikes on the Islamic State in Syria, and says he took inspiration from similar Christmas attacks in Europe.