This article will be updated throughout the day OTTAWA—Large groups of police, some carrying assault rifles and rubber bullet launchers, have begun moving along Rideau Street toward the core protest site in front of the Parliament Buildings, backed up by armoured vehicles, reports CBC News. A small group of protesters could be seen linking arms and singing “O Canada” as they faced the mass of advancing officers. Another group of protesters in front of the Westin Hotel was seen blocking the officers’ path and yelling “Hold the line,” according to Global News. At least one protester was arrested at that time. The Ottawa Police Service (OPS) said on Twitter at around 10 a.m. that every protester within the “unlawful protest site may be arrested.” OPS had earlier warned members of the media to “stay out of police operations” and that ​​”Anyone found within areas undergoing enforcement may be subject to …