of 6 East 23rd Street, a five-story commercial building that housed a drugstore at street level. Twelve firefighters were killed; two chiefs, two lieutenants, and six firefighters plunged into the flaming cellar, while two more firefighters were killed by the blast of flame and heat on the first floor. The site is now the location of Madison Green, a 31-story apartment building. On September 17, 2016, several bombs detonated in New York and New Jersey. One of these was a pressure cooker bomb that exploded on West 23rd Street between Sixth Avenue and Seventh Avenue, injuring 31 people. A New Jersey resident, Ahmed Khan Rahimi, was later detained in connection with the bombings. Economy 23rd Street was historically one of the city's fashion hubs, and the street still contains many clothing stores. There are also several major retailers with stores located on the street, such as Best Buy and The Home Depot. Restaurants, cafes, fast-food outlets and other eating establishments on 23rd Street are mostly oriented toward office workers, and many of these establishments provide catering services. These restaurants offer cuisine from a variety of cultures, including Thai, Italian, Spanish and French cuisine. 23rd Street contains some upper-class areas with expensive real estate. One office space between Park and Lexington Avenues was leased for $240,000 per year in March 2017, while a apartment three blocks east was being sold for $1 million. In July 2015, a four-bedroom penthouse apartment sold for $6.44 million. Transportation Subway Every New York City Subway line that crosses 23rd Street has a local station there: 23rd Street on the BMT Broadway Line serving the 23rd Street on the IND Eighth Avenue Line serving the 23rd Street on the IND Sixth Avenue Line serving the 23rd Street on the IRT Broadway–Seventh Avenue Line serving the 23rd Street on the IRT Lexington Avenue Line serving the There is also a PATH station at 23rd Street and Sixth Avenue. In the past, every former IRT elevated line had a station at 23rd Street, most of which were local stations: 23rd Street on the IRT Second Avenue Line 23rd Street on the IRT Third Avenue Line which served local and express trains 23rd Street on the IRT Sixth Avenue Line 23rd Street on the IRT Ninth Avenue Line Bus MTA New York City Transit's M23 route runs the length of 23rd Street. In 2003, the Straphangers Campaign listed the