New York Port Authority explosion

New York explosion: The moment the device went off
CCTV footage appears to show a blast going off in a passageway between two busy subway stations.
New York explosion: 'Suspect has burns and wounds to body'
Police identify 27-year-old Akayed Ullah as the suspect who detonated an improvised explosive device.
New York explosion: How events unfolded in Manhattan subway
An explosion in the subway system injured four and caused chaos in rush hour. This is what happened.