The department on Tuesday asked followers on its official Twitter account, @NYPDNews, to post photos of themselves with officers:
"Do you have a photo with a member of the NYPD? Tweet us & tag it #myNYPD."
The #myNYPD hashtag quickly took off when people began tweeting photos that the NYPD would probably rather not highlight. The hashtag became a trending topic, drawing responses from around the world.
Many of the photos showed the NYPD wrestling with demonstrators and pointing or swinging weapons at civilians. Few included any context.