Before an emergency hearing in Ottawa, Canada's public safety minister stated that the federal government is internally reviewing the immigration and security screening of a father and son who were recently charged by the Royal Canadian Mounted Police in connection with an alleged failed terrorist plot in Toronto.

Public Safety Minister Dominic LeBlanc told reporters on Wednesday, amid a series of specific questions about the concerning case: "When you have a circumstance like this, Immigration and Public Safety will of course review ... all circumstances, particularly the timeline and when some information became available."

"This process is ongoing."

Last month, the Royal Canadian Mounted Police arrested Ahmed Fouad Mustafa El-Didi, 62, and Mustafa El-Didi, 26, in Richmond Hill, Ontario. The two - whom police said are Canadian citizens - were "in the advanced stages of planning a serious and violent attack in Toronto."

Both are facing a series of terrorism-related charges, including conspiracy to commit murder for ISIS or at its direction or in collaboration with it.

While most of the charges stem from alleged activities conducted in Canada, the father has also been accused of committing aggravated assault abroad in June 2015 on behalf of the terrorist group.

Global News cited unnamed sources last week as saying that the father immigrated to Canada after being filmed participating in ISIS violence abroad, and that his son does not hold Canadian citizenship. CTV News did not independently verify this report.

LeBlanc told reporters that senior officials from the RCMP and Canadian Security Intelligence Service in Ottawa briefed him on the matter, noting that some of the circulating information "may not be reliable."

LeBlanc stated, "It is important to establish the timeline, as we believe. There have been some public claims about certain information. It might be interesting to know when that information came to light and when it was in the hands of any decision-maker."

The two men appeared in court on Wednesday, remained without lawyers, and their bail hearings were postponed to next week.

Conducting Hearings, and the New Democratic Party Returns

One day prior, federal Conservatives called for public safety and national security committee hearings in the House of Commons on how these men were able to immigrate to this country, stating that Canadians have "the right to know what went wrong."

Conservative Leader in the House Andrew Scheer called on the Bloc Québécois and New Democratic Party to support his party's efforts to summon the committee, and on Wednesday, the New Democratic Party said it agreed, ensuring the ability to hold an emergency meeting.

New Democratic Party MP and committee member Alistair MacGregor said in a statement: "Reports of a terrorist conspiracy in Ontario - which the Royal Canadian Mounted Police thankfully thwarted - leave Canadians concerned that the community narrowly escaped a potentially deadly attack."

"They are rightly disturbed that a man with alleged ties to a foreign terrorist group was not only allowed to enter Canada but granted Canadian citizenship."

Federal New Democrats agree that MPs must "examine all developments" that led to the arrival of the two men in Canada and their subsequent arrest. MacGregor also wants to expand the hearings to cover other concerns, such as how screenings allowed current and former officials from the Islamic Republic of Iran to enter.

MacGregor stated, "It is unfortunate that since 2015, the Trudeau government has had a dismal record with our immigration system, leading to a significant backlog in applications and delays in processing times ... while honest families are separated from their loved ones for years while waiting to come to Canada."

"Knowing that criminals and individuals connected to oppressive political regimes have been able to enter freely is a slap in the face to them."

The Conservatives, in promoting their party's push for a special meeting, confirmed on Thursday that the meeting will take place next week, "to address this horrific failure in national security."

There, a request will be made for LeBlanc and Immigration Minister Marco Mendicino to testify, along with senior bureaucrats from related departments and agencies.

LeBlanc promised to say more later

It remains to be seen when ministers and officials can be summoned, as LeBlanc indicated on Wednesday that the federal government shared what can be shared at this time.

The minister stated he would have more to say "sometime in the future," noting that he does not want to "compromise the ability of police and prosecutors to carry out a successful criminal trial," by engaging in the political dialogue surrounding the case.

LeBlanc said, "I think what Canadians have a right to know is that security agencies are doing important work to protect them ... and the fact that these two individuals are currently in jail facing serious criminal charges should give Canadians confidence that the Royal Canadian Mounted Police and their partners have done good work in this case."

Immigration lawyer Max Berger stated that "if they are found to be involved in terrorist activities, or membership in an organization involved in terrorism," Canadian citizenship status can be revoked from them.