Though yesterday’s clearing of McPherson Square by U.S. Park Police was mostly peaceful, tensions erupted at times between officers and the Occupy D.C. protesters who have inhabited the park since last October.

About 4 p.m., as police prepared to inspect the northwest quadrant of the park to determine which tents were in violation of the National Park Service’s ban on camping in McPherson Square, the demonstrators concern’ turned toward the Occupy D.C. library. Scores of protesters flooded the sidewalk in front of the library, which was ultimately allowed to remain, but not before a prolonged standoff.

DCist photographer James Calder was on hand to snap some pictures of the ensuing scuffle, in which protesters and reporters alike were shoved out of the park and on to K Street NW.