A suspect was detained, and the victims -- all civilians including one with serious injuries, two with moderate injuries and two with minor injuries -- were transported to hospital, the New York Fire Department said in a brief statement."Perp in custody," it said. "Operations ongoing." Circumstances of the stabbing were not immediately clear. A photographer at the scene afterward saw gauze, medical gloves and blood on the floor near tracks 5 and 6, where police cordoned off the area.The incident occurred at one of the nation's busiest rail and subway transportation centers as the city prepares for two huge sporting spectacles in the coming week: basketball's NBA Finals and football's World Cup tournament.Madison Square Garden, located directly above Penn Station in downtown Manhattan, will host games three and four of the NBA Finals on Monday and Wednesday between the New York Knicks and the San Antonio Spurs. MetLife stadium, outside the city in neighboring New Jersey state, will host its first match of the World Cup on Saturday.

Gauze, gloves and blood are seen on the floor at New York's Penn Station after a stabbing incident there just days before the city hosts two major sporting events © John Lamparski / AFP