New York 'terror' bomb attack: What we know
A man with a pipe bomb strapped to his body with Velcro and zip ties set off the crude device in the subway near Times Square on Monday, injuring himself and three other people at the height of the morning rush hour.
All four were being treated for non-life-threatening injuries in what the mayor and police labelled an attempted terror attack.
This is what we know so far.
What happened?
An explosion took place at the Port Authority Bus Terminal in Manhattan, slightly wounding three others and sending New York commuters fleeing in terror through the smoky passageway.
Surveillance cameras captured the man walking casually through the crowded passage when the bomb went off at 7.20 am.
Port Authority police said officers found the man injured on the ground, with wires protruding from his jacket to his pants and the device strapped to his torso under his coat. They said he was reaching for a cellphone and they grabbed his hands.
Mayor Bill de Blasio and Police Commissioner James P. O'Neill labelled it an attempted terror attack.
Who is the suspect?
The suspect was identified as 27-year-old Akayed Ullah.
Details from his passport revealed he lives in Brooklyn and is of Bangladeshi descent.
Ullah lived with his father, mother and brother in a residential area with a large Bangladeshi community, neighbours said.
He had no criminal record in his home country which he last visited in September, Bangladesh's police chief said on Monday.
He is being treated for lacerations and burns to his hands and abdomen.
How did he do it?
Authorities said the bomb was a low-tech explosive device attached to the man with Velcro and plastic ties.
They are still investigating how it was made but it is understood he may have learned how to make it online.
It's understood the pipe bomb malfunctioned, potentially saving hundreds of commuters who were near the 27-year-old when it went off.
What was his motive?
New York Governor Andrew Cuomo said Ullah was not part of a "sophisticated network" but appeared to have been "influenced" by the Islamic State or other extremist groups.
Law enforcement officials said Ullah was inspired by the Islamic State group but apparently did not have any direct contact with the group.
CNN reports that recent Israeli actions to launch airstrikes into Gaza compelled Ullah to carry out the attack, saying the suspect was upset and frustrated.
The action follows President Trump’s controversial move to recognise Jerusalem as the capital of Israel.
Investigators were searching Ullah’s apartment, interviewing witnesses and relatives and looking for surveillance footage that may show his movements in the moments before the attack.
They are also reviewing his subway fare card.
