OAKLAND -- A 26-year-old Oakland woman who was angered when she saw a group graffiti a wall outside the Oakland Public Library downtown early Saturday got into her Mercedes and ran down a man she mistakenly thought was part of the group, police said.

Before she struck the 25-year-old Oakland man with her car, the woman argued with members of the tagging group, who slapped her and marked her car with graffiti, police said.

According to police, the woman left a bar in the 100 block of 14th Street about 12:45 a.m. when she saw 12 to 15 people tagging the wall of the main branch of the library.

She argued with some of them and then got into her car. That's when some of the taggers marked up her car with graffiti, police said.

When the group started walking toward downtown, the woman made a U-turn and drove down the wrong side of the street, striking the uninvolved man, police said. Police said she was aiming for the group and they don't believe the man was one of the taggers.

The impact tossed him about 100 feet, police said. The man, whose name was not released, remained in critical condition Saturday, police said.

Police said the woman drove away, but witnesses tracked her to the 100 block of 12th Street, where they boxed her in with their cars and waited for officers.

The unidentified woman was arrested on suspicion of assault with a deadly weapon, hit-and-run and driving under the influence, police said.

Contact Kristin J. Bender at kbender@bayareanewsgroup.com. Follow her at Twitter.com/kjbender. Reach Harry Harris at hharris@bayareanewsgroup.com. Follow him at Twitter.com/harryharris15.