Among the thousands of protesters who descended on Toronto for the G20 summit were a few familiar Vancouver faces -- some of whom say the police went too far with their crowd-control tactics.
Activist Harsha Walia was a vocal protester leading up to the Olympics -- one of many who hoped to disrupt the Games.
Now, several of her colleagues say she may be among hundreds of people arrested in Toronto over the weekend, and she could not be reached by CTV News on Monday.
Supporters were calling for her release in an online petition.
Derrick O'Keefe of the Canadian Peace Alliance, a Vancouver-based activist, helped organize some of the anti-war rallies in Toronto.
He told CTV News he didn't see Walia there, but watched many other arrests.
"I witnessed police officers harassing, interrogating and detaining just about anybody and everybody," O'Keefe said.
During a march on Saturday, protesters went by the U.S. consulate and chanted slogans when they were confronted by police.
"Dozens and dozens of riot cops with what looked like shotguns and tear gas came out to provoke the crowd," O'Keefe said.
"This is really an unprecedented show of force and repression, and lost in all of this are a lot of the issues, like our anti-war group, were trying to bring to the leaders."
University of B.C. political scientist Michael Byers says police lost control at the protests.
"In my view, some fundamental civil liberties were violated over the weekend," he told CTV News.
"I sympathize with the police. They were put in a very difficult position, but I think they made some serious mistakes. That's one of the reasons why I am calling for a public inquiry to figure out exactly what went wrong and how we can prevent both the violence and the overreaction by the police."
With a report from CTV British Columbia's Leah Hendry
