A 20-hour standoff between police and a 71-year-old man holed up in a Côte Saint-Luc, Que., home ended just after 8 a.m. ET after he was shot with a rubber bullet and taken into custody.

Const. Daniel Lacoursière of the Montreal police said Wednesday morning that a suspect was arrested by a police tactical unit without incident. He was identified as Isidore Havis by family lawyer Jeffrey Boro.

He did not have any apparent injuries, but was taken to hospital for evaluation, Lacoursière said.

Later on Wednesday, Boro said his client had several broken bones and was sedated in hospital.

Havis is a gun collector, who has numerous firearms registered in his name, according to Montreal police. Radio-Canada reported that Havis had 182 guns registered to him, but the number of guns in the house remains unclear.

He was charged in 2008 with resisting arrest and assaulting a peace officer, and pleaded guilty to the resisting arrest charge in 2010.

Boro is expecting a number of charges to be laid against Havis.

"The charge that police have informed me they are going to lay is one of attempted murder, and there will probably be various other charges of weapons, because he used a weapon in the commission of the offence. So I imagine that will be added along with the attempted murder," said the lawyer.

Police were called to Havis's home on Tuesday morning about a dispute allegedly involving a firearm, between the homeowner and workers on his property.

After members of the tactical squad arrived at about 11:30 a.m. ET, at least two shots were fired in their direction, police said.

One officer was injured in the foot, although Const. Anie Lemieux said the injury was minor and the officer was able to continue his role in the operation.

On Wednesday morning, a Sûreté du Québec’s armoured vehicle was brought in, and started to break through the front door of the home.

A short time later, several detonations were heard.

CBC’s Marie-Claude Cabana said those were attributed to police punching holes in the walls of the home and throwing in irritant gas to try and force the occupant out.

Neighbours describe Havis as 'aggressive'

More than 10 homes and several apartment units surrounding Havis's home in the city of Côte Saint-Luc, located on the west side of the Island of Montreal, were blocked off by police as officers worked to convince the man inside the home to surrender.

Aaron Minciotti, who lives directly across the street, said he had verbal altercations with Havis several times, but never suspected he had weapons in his home.

"It’s inconceivable for me to know he was in the state he was, and that there were firearms in the house," Minciotti said.

"I’m across the street, I have five children. I’m pretty shook up about that one."

Another neighbour, Monique Ohayon, said she found Havis to be a little threatening in her dealings with him.

"He was always violent, always aggressive," she said, alleging that he once threatened to kill her dog.