Canada worked "very closely" with the United States on intelligence that Indian agents had been potentially involved in the murder of a Sikh leader in British Columbia earlier this year, a senior Canadian government source said on Tuesday.

Prime Minister Justin Trudeau announced on Monday that domestic intelligence agencies were actively pursuing credible allegations tying New Delhi¡¯s agents to the shooting of Hardeep Singh Nijjar, 45, in June.

"We¡¯ve been working with the U.S. very closely, including on the public disclosure yesterday," the source said. The evidence in Canada¡¯s possession would be shared "in due course", said the official who did not give a name due to the sensitivity of the information. Trudeau on Tuesday told reporters that the case had far-reaching consequences in international law, and urged the Indian government to take the matter seriously and help Canada fully investigate the matter.