A committee in the House of Commons will investigate how a man facing terrorism charges entered Canada and obtained citizenship.

Members of Parliament in the Public Safety and National Security Committee unanimously voted yesterday, Tuesday, to begin a study on terrorist suspects who were arrested in the Toronto area last month.

Ahmad Fouad Mustafa Al-Didi, 62, and his son Mustafa Al-Didi, 26, were arrested in Richmond Hill, Ontario, and are facing nine terrorism charges, including conspiracy to commit murder on behalf of the Islamic State of Iraq and Syria.

The Royal Canadian Mounted Police announced the charges on July 31, stating that the two men were "in the advanced stages of planning a violent and serious attack in Toronto."

Most of the charges relate to activities allegedly occurring in Canada. The elder Al-Didi, whom the RCMP says is a Canadian citizen, is also charged with one count related to serious assault outside the country.

A police spokesperson said last week that law enforcement is waiting for confirmation of Mustafa Al-Didi's status.

The committee will begin its study later this month and will invite Minister of Immigration Marc Miller and Minister of Public Safety Dominic LeBlanc to testify.

LeBlanc stated that federal departments are reviewing how to allow two men suspected of links to a terrorist organization abroad to enter Canada.

During a press conference last Monday, Prime Minister Justin Trudeau said the government will share the findings "at the appropriate time."

Trudeau stated, "We take this matter very seriously because Canadians need to have confidence in our immigration system."