Canada is expelling a top Indian diplomat as it investigates what Prime Minister Justin Trudeau calls credible allegations that India’s government may have had links to the assassination in Canada of a Sikh activist. Trudeau says Canadian intelligence agencies are looking into the allegations after Sikh leader Hardeep Singh Nijjar was gunned down June 18 outside a cultural center in British Columbia. Nijjar was a strong supporter of an independent Sikh homeland known as Khalistan. Trudeau says he brought up the slaying with Indian Prime Minister Narendra Modi at the G-20 last week, and asked for cooperation in the investigation. Canadian Foreign Minister Mélanie Joly says the head of Indian intelligence in Canada has been expelled.