Police arrested more than 700 Occupy Wall Street protesters on Brooklyn Bridge in New York on Saturday. Were you one of them? We want to hear from you

Police arrested more than 700 people on Saturday as Occupy Wall Street protesters attempted to march over the Brooklyn Bridge in New York.

Protesters claim they were lured into a trap, with police guiding them onto the traffic lanes on the bridge instead of the elevated pedestrian walkway.

This eight-minute clip shot and edited by protesters, and uploaded to YouTube, shows a number of police officers apparently headed by one, wearing a long, orange-lined coat, leading protesters into the Brooklyn-bound traffic lanes.

When the protesters were about halfway over the the bridge, they were prevented by lines of officers from exiting at the Brooklyn side, while police vans brought up the rear.

Etan Ben-Ami, 54, quoted by the New York Daily News, accused the police of apparently laying a trap. "It seemed as if they deliberately moved back to allow people onto the roadway."

Other protesters thought that police had let them onto the traffic lanes because of overcrowding on the pedestrian walkway.

Robert Cammiso, a 48-year-old student from Brooklyn, told the Associated Press: "We were supposed to go up the pedestrian roadway. There was a huge funnel, a bottleneck, and we couldn't fit. People jumped from the walkway onto the roadway. We thought the roadway was open to us."

The police responded to the claims of a trap in a move straight out of the protesters' play book. On Sunday, the NYPD published video to YouTube which they say shows protesters were warned they would be arrested.

In the video, the officer's warnings are drowned out by the protesters' chants.

Paul Browne, the NYPD chief spokesman, said: "Multiple warnings by police were given to protesters to stay on the pedestrian walkway and that if they took the roadway they would be arrested."

This account is supported by some who were on the march. Malcolm Harris, a blogger who was on the march, and who was among those arrested, said in a post on Twitter: "They tried to stop us, absolutely did not want us on the motorway, had no expectation we would take it.

It seems the NYPD were acutely aware of the potential for bad publicity if scenes turned ugly. In this video, an officer can be seen warning another officer about his conduct. The first officer appears to react angrily to a confrontation with protesters – he is pulled back and apparently given advice about his conduct by a finger-wagging colleague, as protesters chant: "The whole world is watching!"

Were you part of the Brooklyn Bridge protests? Do you have more video or pictures, or links to material already published? We would like to build a more comprehensive picture of what happened.

Also, were you arrested? We would like to hear your story. It is better to email me or contact me on Twitter, as it makes it easier for us to contact you back. Or you can post links in the comments below.