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The Canadian government is considering revoking the citizenship of a man accused of plotting a terror attack in Toronto.

Canadian police last month said they arrested a father and son accused of planning a "violent, serious attack" for the Islamic State group.

Speaking to reporters on Wednesday, Immigration Minister Marc Miller said he had a "responsibility to get to the bottom" of what happened.

"I'm also going to take the next step, which is to start the preliminary work with the evidence at hand to look at whether the individual in question's citizenship should be revoked," he said.

"I'm as disgusted as any Canadian," he added.

Ahmed Eldidi, 62, and his son, Mostafa Eldidi, 26, have been charged with terrorism and conspiracy to commit murder.

The two men are also facing weapons charges for an axe and a machete found in their possession, the Royal Canadian Mounted Police said.

The father was a Canadian resident who is also accused of committing aggravated assault in 2015 outside of the country, officials have said. His son does not have citizenship in Canada, according to police.

The Canadian government can revoke citizenship if a person has misrepresented their past, according to the government's website.

Police have said Mr Eldidi and his son were in the "advanced stages" of planning a terror attack.

Other details about the plot - including what led to the investigation that thwarted it - have not been released.

"I hope to be able to provide answers in a relatively short timeline about what happened," Mr Miller told reporters on Wednesday.

The House of Commons Standing Committee on Public Safety and National Security voted this week to call ministers to testify about the Eldidis' immigration history.