The 21-year-old woman featured in a G20-related news conference held by Toronto police on Wednesday has turned herself in to law enforcement officials in Peterborough.

Kelly Pflug-Back, wanted in connection with mischief during the G20 summit, surrendered at about 2:30 p.m.

Police released photographs of 21 suspects at the news conference, calling on the public to help identify them.

Police allege some protesters tried to conceal their identities with black clothing and later changed so that they could not be detected within crowds of peaceful protesters.

Also named was a 21-year-old woman believed to have led protesters in using so-called Black Bloc tactics to stir upheaval in the downtown core.

Kelly Pflug-Back is charged with six counts of mischief.