This is the best summary I could come up with:

OTTAWA, Sept 18 (Reuters) - Canada said on Monday that it was “actively pursuing credible allegations” linking Indian government agents to the murder of a Sikh separatist leader in British Columbia in June, dealing a further blow to diplomatic ties between the countries.

Prime Minister Justin Trudeau said in an emergency statement to the House of Commons that any involvement of a foreign government in the killing of a Canadian citizen was “an unacceptable violation of our sovereignty”.

“Canadian security agencies have been actively pursuing credible allegations of a potential link between agents of the government of India” and Nijjar’s death, Trudeau said.

He said he had raised the murder directly with Indian Prime Minister Narendra Modi on the sidelines of the G20 summit in New Delhi last week, and urged the government of India to “cooperate with Canada to get to the bottom of this matter”.

“We are deeply concerned about the allegations referenced by Prime Minister Trudeau earlier today,” U.S. National Security Council spokesperson Adrienne Watson said in a statement released late on Monday night.

Public Safety Minister Dominic LeBlanc said several senior Canadian government officials had visited India recently to express Ottawa’s concerns.

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