“Anyone who fell, got up and walked away. We’re unaware of any injuries,” police said on Twitter.
One person was arrested when a bicycle was thrown in the direction of a horse farther down the line, police said.
City, provincial and federal law enforcement officers began an unprecedented operation Friday morning to remove protesters and their trucks and cars that have been blockading Ottawa’s streets for weeks. By Friday night, more than 100 people had been arrested and 21 vehicles were towed.
At an afternoon news conference, interim Ottawa Police Chief Steve Bell said authorities would work all day and all night to move protesters out.
“We’re in control of the situation on the ground and continue to push forward to clear our streets,” Bell said.
Several trucks and cars have voluntarily left the protest but dozens continue to block streets in and around Parliament.
“The children will be brought to a place of safety,” the tweet said.
“Even through all the planning, it still shocks and surprises me that we are seeing children put in harm’s way, in the middle of a demonstration where a police operation is unfolding,” Bell said. “We will continue to look after their safety and security but we implore all the parents who have kids in there, get the kids out of there.”
Local media showed live pictures of several arrests that occurred earlier Friday without incident. Police searches and arrests took place at a location less than a half-mile from the main protest site at Parliament Hill.
In his news conference earlier Friday, Bell said no protesters were hurt during the day and one officer suffered minor injuries.
Debate in Parliament on using the Emergencies Act was slated to continue Friday, but the House of Commons will not meet because of police activity in downtown Ottawa, House of Commons Speaker Anthony Rota said in a statement.
Ottawa police on Friday confirmed the arrests of two protest organizers, Tamara Lich, 49, and Christopher John Barber, 46.
Lich was charged with counseling to commit the offense of mischief and Barber has been charged with counseling to commit the offense of mischief, counseling to commit the offense of disobeying a court order, and counseling to commit the offense of obstructing police.
Barber had a contested bail hearing Friday, attorney Diane Magas said in an email to CNN. He was released on conditions and a bond, she added. Lich is scheduled to appear in court Saturday morning for her arraignment.
Video posted on social media shows Lich interacting with a police officer, then being handcuffed and led away to a police cruiser.
Overnight, the three police forces hardened the perimeter in the downtown core, which includes checkpoints at on-ramps from highways and side streets.
The secured area would ensure that those seeking entry for an “unlawful reason such as joining a protest cannot enter the downtown core,” according to Bell.
With nearly 100 checkpoints, the perimeter encompasses most of Ottawa’s downtown area and is far larger than the protest footprint to date.
Those who live, work or have a lawful reason to be in the area would be allowed access, authorities said.
Trudeau defends call for emergency powers
Officials have said a primary aim of invoking the Emergencies Act is to stifle funding to the demonstrators in Ottawa.
“These illegal blockades are being heavily supported by individuals in the United States and from elsewhere around the world,” Trudeau said. “We see that roughly half of the funding that is flowing to the barricaders here is coming from the United States. The goal of all measures, including financial measures in the Emergencies Act, is to deal with the current threat only, and to get the situation fully under control.”
The act, passed in 1988 and never before invoked, can temporarily suspend citizens’ rights to free movement or assembly. It can also provide for the use of the military, but Trudeau has said this would not be necessary.
“We did it to protect families and small businesses. To protect jobs and the economy. We did it because the situation could not be dealt with under any other law in Canada,” Trudeau said. “For the good of all Canadians, the illegal blockades and occupations have to stop, and the borders have to remain open.”
“The first act that he does when he has a chance to do something — he doesn’t go through step one, two, three — he goes straight to 100 and invokes the Emergencies Act,” Bergen told CTV News. “I don’t think anything that we will see will change our mind, we will be opposing it.”
The government must propose a motion in both the House and Senate explaining why federal officials need the powers and specifying what actions will be taken, then both the House and Senate must confirm the motions, according to CTV.
The federal government will work with premiers across the country “until the situation is resolved,” Trudeau said.
CNN’s Raja Razek, Chris Boyette, Amir Vera and Jenn Selva contributed to this report.