At least four people were injured when the roof of a shopping mall in Ontario, Canada, collapsed Saturday afternoon, officials said.

The roof was used for parking at the two-story Algo Centre Mall in Elliot Lake, about 335 miles northwest of Toronto. CBC News quoted a witness as saying cars had plunged through the roof.

"You can see the roof with the cars hanging inside," Joe Drazil, identified as a Zellers employee at the mall, told the CBC.

Mayor Rick Hamilton told CBC that four people were taken to the hospital. A fire official reached by Reuters said emergency workers were still searching for possible victims.

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Cora Richer / The Canadian Press via AP

A woman checks out the damage after a roof collapsed at the Algo Centre Mall in Elliot Lake, Ontario, on Saturday

Mall manager Rhonda Bear told CBC News that repairs had been done to the roof over the last year, but not "any huge structural repairs" to the part that collapsed. She also told CBC that the mall owners, Toronto-based Eastwood Mall Inc., ordered a structural study a month ago that she said turned up nothing.

But the CBC said the Elliot Lake Standard newspaper has reported that the mall had had roof leaks for years.

This article includes reporting by msnbc.com staff and Reuters.

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Mark Blinch / Reuters

People observe a moment of silence at a candlelight vigil at Dundas Square in Toronto on Sunday after a shooting across in nearby Eaton Centre shopping mall left one dead and at least six others wounded.

A suspect has been arrested over the shooting at a downtown Toronto shopping mall that left one man dead and at least six others wounded on the weekend, police said on Monday.

The man handed himself in to police in the early hours, Canada's CTV reported.

Police said on Sunday they believed they knew the identity of the shooter and said the victim, 24-year-old Toronto resident Ahmed Hassan, may have had some gang affiliation.

The shooting occurred Saturday evening at the Eaton Centre, one of Toronto's top tourist destinations. It shocked Canada's largest city, which has a reputation as one of the safest in North America.

CTV said the injured included a 13-year-old boy who suffered a gunshot wound to the head. He was listed in critical but stable condition at the Hospital For Sick Children, it said.

Another 23-year-old man was in critical condition with multiple gunshot wounds to the neck and chest, CTV added.

Toronto police confirmed Monday’s arrest on Twitter but declined to provide further details. A spokeswoman said a news conference would be held at 2 p.m. ET.

1 dead, 7 hurt in shooting at downtown Toronto mall

“Our investigation clearly suggests that this is a targeted shooting and not a random act of violence against the members of the general public," Brian Borg, a Toronto police detective, said in a media briefing on Sunday.

"Whether this is a gang-motivated shooting has not been definitively determined. But I can say it is being closely looked at given that at least one of the victims has known gang associations."

The incident revived memories of another shooting close to Eaton Centre on Dec. 26, 2005, when a 15-year-old girl was killed and several other people were wounded. That shooting was also believed to be gang-related.

Canada has stringent controls on handguns and a lower rate of gun-related violence than the United States. 

Reuters contributed to this report.

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