A man has been arraigned in connection with alleged bombing threats at Concordia University in Montreal.

Hisham Saadi, 47, is charged with mischief, uttering threats and inciting fear of a terrorist-related attack.

Three university buildings in the downtown area were evacuated for several hours Wednesday after Concordia received what it called bomb threats targeting Muslim students.

Read more:Police find nothing after bomb threat targets Muslims at Montreal’s Concordia University

Classes were disrupted for several hundred students as authorities searched the facilities for explosive devices. None were found and police ended their sweep in the afternoon, but the buildings were kept closed until 6 p.m. ET.

In a letter sent to several media outlets and consulted by The Canadian Press, a group threatened to detonate “small artisanal explosive devices” once a day until Friday in order to injure Muslim students.

The group, which described itself as a chapter of the Council of Conservative Citizens of Canada, or C4, complained about Muslim prayer services on campus and demanded the school stop “religious activities of all kinds.”

Premier Philippe Couillard described the letter’s content as “reprehensible” and said his government was monitoring the situation.

Saadi was taken into custody early Thursday at an apartment in Montreal’s Cote-des-Neiges neighbourhood.

Saadi is expected to return to court Friday for a bail hearing.