Canada's Prime Minister Justin Trudeau speaks during a press conference following a cabinet shuffle, at Rideau Hall, in Ottawa, Ontario, Canada, July 26, 2023.

Canada expelled a top Indian diplomat Monday as it investigates what Prime Minister Justin Trudeau called credible allegations that India's government may have had links to the assassination in Canada of a Sikh activist.

Trudeau said in Parliament that Canadian intelligence agencies have been looking into the allegations after Sikh leader Hardeep Singh Nijjar, a strong supporter of an independent Sikh homeland known as Khalistan, was gunned down on June 18 outside a Sikh cultural center in Surrey, British Columbia.