The Occupy Wall Street demonstrators moved north through Manhattan and held a rally for several hours in the square on Saturday night.
Estimates of the crowd ranged from 5,000 to 10,000 as they mixed with Broadway show-goers and tourists.
A police spokesman said arrests were made after protesters repeatedly ignored warnings to disperse.
The demonstration was largely non-confrontational but two police officers were hospitalised, including one with a head injury.
Protesters chanted "We got sold out, banks got bailed out" and "All day, all week, occupy Wall Street." » | Nick Allen, Los Angeles | Sunday, October 16, 2011
