Indian diplomat has left Canada in wake of allegations surrounding Sikh activist's death

A diplomat who was ordered out of Canada in the wake of allegations about the killing of a Canadian Sikh activist has left the country, says a senior government official.

On Monday, Prime Minister Justin Trudeau told the House of Commonsthat Canada has "credible intelligence" linking agents of the Indian government to the killing of Hardeep Singh Nijjar, who was gunned down outside a Sikh temple in Surrey, B.C., on June 18.

Following that stunning announcement, Foreign Affairs Minister Mlanie Joly said she had ordered the expulsion of "a senior Indian diplomat."

Pavan Kumar Rai who was the head of the Research and Analysis Wing (RAW), India's foreign intelligence agency, in Canada left the country on Thursday, a government official told CBC News.

In a tit-for-tat response, India announced it had given a Canadian diplomat five days' notice to leave the country. It's not clear if that diplomat has left India.

The allegations have rocked Canada's allies andwas even raised during a joint press conference between Trudeau and Ukrainian President Volodymyr Zelenskyy on Friday.

Asked to describe the evidence Ottawa has shown the India government, Trudeau said "Canada shared the credible allegations many weeks ago."

"We are there to work constructively with India and we hope that they engage with us so that we can get to the bottom of this," he said.

Trudeau has said he raised the matter with India's Prime Minister Narendra Modi when they met during the G20 summit less than two weeks ago.

As first reported by CBC News, Canadian officials went to India on several occasions seeking co-operation in the investigation into Nijjar's death.

Canada's National Security and Intelligence Adviser Jody Thomas was in India over four days in mid-August.

Sources have told CBC that the Canadian government has amassed both human and signals intelligence in the months-long investigation.

That intelligence includes communications involving Indian officials themselves, including Indian diplomats present in Canada, the sources said.

The Canadian government has not released its evidence and has suggested it could emerge during an eventual legal process.

Canadian sources say that, when pressed behind closed doors, no Indian official has denied the bombshell allegation at the core of this case that there is evidence to suggest Indian government involvement in the assassination of a Canadian citizen on Canadian soil.

The Indian government has fumed at Canada for in its view sheltering Sikh separatists, including Nijjar, whom it called a terrorist.

The growing feud escalated Thursday when India stopped processing visitor visas in Canada.

Canada is weighing retaliation but has made no decision yet, said government sources in Ottawa. Trudeau dodged a question about suspending Indian visa applications Thursday.