New security measures are in place at the Toronto Christmas Market in the wake of the attack in Berlin.

The market, which operates in the Distillery District throughout the holidays, has erected concrete barriers outside several entrances and a security vehicle is now stationed near the main gate.

Const. Caroline de Kloet, a Toronto police spokeswoman, said she couldn't speak about operational details, but a police source in 51 Division confirmed that security had been stepped up at the request of the market's organizers.

Expect more security at the Toronto Christmas Market this week in the wake of the attack on Berlin, event organizers say. (Michael Charles Cole/CBC) More uniformed police officers will be patrolling the area, the source said.

"We are making adjustments and enhancements to some of our current measures in light of yesterday's event," Kathleen Stelmach, a spokeswoman for the market, said in an emailed statement.

Stelmach said security plans for the market were developed months ago, but continue to be modified in conjunction with police, firefighters and paramedics as the month-long festival goes on.

Toronto saddened by Berlin attack

Stelmach said the market's organizers are "deeply saddened" by what happened in Berlin.

At least 12 people died and nearly 50 more are still recovering from injuries after a truck plowed into crowds at a Berlin Christmas market on Monday. According to SITE Intelligence Group, an organization that tracks extremists groups, Islamic State in Iraq and Syria (ISIS) has claimed responsibility for the attack via its Amaq news agency.

Police arrested one man in connection with the tragic incident, but released him Tuesday citing a lack of evidence.