An explosive device has been thrown into a crowd of protesters near Times Square, as pro-Israel and pro-Palestine demonstrations descended into violence.
The device thrown on Thursday evening is thought to be a smoke bomb, a NYPD spokesman told DailyMail.com.
He said there were minor injuries, which he believed to be burns.
At least 19 people were arrested, The New York Post reported, amid skirmishes between the two sides.
Footage on social media showed agitators from both sides attempting to snatch the other’s flag. One pro-Israel protester was punched in the stomach when he fought to retrieve his flag; a pro-Palestine protester has seen in handcuffs after he tried to get his own flag back.
People are seen running for cover on Thursday evening as the device was thrown and began smoking
Smoke can be seen in the area as the device was hurled towards the crowd in Manhattan
Footage on social media did not immediately identify who threw the device: NYPD are investigating
New York police said it was too early to tell who had thrown the explosive device.
However, on social media some claimed that it was hurled by pro-Palestine activists towards a group of pro-Israeli demonstrators.
Earlier, violent clashes had erupted in Times Square between both sides.
Pro-Palestinian agitators set an Israeli flag on fire, taunting their rivals.
Green smoke was let off, and the air was thick with acrid chemicals.
The NYPD brought in barricades to try and separate the two sides.
Neither seemed to be willing to back down, however, and several people were seen handcuffed.
Pro-Palestine activists cheer as a man punches another man in the side of the head in Times Square
NYPD are seen arresting a man in a pro-Palestine t-shirt on Thursday evening in Times Square
Green smoke was let off by protesters as fist fights broke out between pro-Palestine and pro-Israel agitators
One man fell to the floor and was kicked while on the ground, as another man, in a red sweatshirt, tried to stop the violence
An Israeli flag was set on fire by the pro-Palestinian crowd
NYPD brought in barricades to try and separate the two warring factions
A masked man waves a Palestinian flag in Times Square, amid smoke and brawls