The Canadian government said on Tuesday it was 'seriously concerned' with the circumstances surrounding the death of an Iranian-Canadian dual citizen in a Tehran prison, and that it was pressing Iran to provide details on what happened. Kavous Seyed-Emami, an environmental activist and sociology professor, was arrested on Jan. 24 and died in prison, his son wrote on Twitter last week. Iran's judiciary said on Sunday that Seyed-Emami, 63, had committed suicide. 'We are seriously concerned by the situation surrounding the detention and death of Mr. Seyed-Emami,' Canada's foreign minister, Chrystia Freeland, said in a statement. 'We expect the Government of Iran to provide information and answers into the circumstances surrounding this tragedy. We will continue to use every means at Canada's disposal to seek further information.'