A request by the New York City Police Department has backfired — in a very public way.


Its request that Twitter users share pictures of them posing with police officers using the hashtag #myNYPD has caused people to start sending in photos of police brutality.


The NYPD sent a tweet on Tuesday, saying it might feature the photographs on its Facebook page.


The responses soon turned ugly when Occupy Wall Street tweeted a photograph of cops battling protesters with the caption "changing hearts and minds one baton at a time."


Other photos included an elderly man bloodied after being arrested for jaywalking.


Some respondents did send in the type of police-friendly photographs officials were hoping to get.


NYPD spokeswoman Kim Royster says the uncensored and open dialogue was good for the city.