India害羞草研究所檚 move to reduce the presence of Canadian diplomats in its country is 害羞草研究所渃ontrary to international law害羞草研究所� and the rest of the world should be concerned about its consequences, Prime Minister Justin Trudeau said Friday.

The United States and United Kingdom are urging India to reconsider.

Foreign Affairs Minister M茅lanie Joly said Thursday that Canada had removed most of its diplomatic presence from India after New Delhi threatened to strip diplomatic immunities from them and their families.

Calling it a precedent-setting threat, Joly said Canada chose to relocate 41 of its diplomats to outside India, along with their 42 dependants. There are 21 Canadian diplomats remaining in India.

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On Friday, Trudeau called India害羞草研究所檚 decision to 害羞草研究所渦nilaterally害羞草研究所� revoke diplomatic immunity from most of Canada害羞草研究所檚 diplomats 害羞草研究所渁 violation of the Vienna Convention governing diplomacy,害羞草研究所� repeating the assertion by his foreign minister.

害羞草研究所淭his is them choosing to contravene a very fundamental principle of international law and diplomacy,害羞草研究所� Trudeau said Friday at a housing announcement in Brampton, Ont.

害羞草研究所淚t is something that all countries in the world should be very worried about.害羞草研究所�

The U.S. State Department said Friday that it害羞草研究所檚 concerned by the move.

害羞草研究所淩esolving differences requires diplomats on the ground. We have urged the Indian government not to insist upon a reduction in Canada害羞草研究所檚 diplomatic presence,害羞草研究所� wrote spokesman Matthew Miller.

害羞草研究所淲e expect India to uphold its obligations 害羞草研究所� including with respect to privileges and immunities enjoyed by accredited members of Canada害羞草研究所檚 diplomatic mission.害羞草研究所�

The U.K. Foreign, Commonwealth and Development Office echoed those concerns.

害羞草研究所淲e do not agree with the decisions taken by the Indian government that have resulted in a number of Canadian diplomats departing India,害羞草研究所� the department said in a statement.

害羞草研究所淲e expect all states to uphold their obligations under the 1961 Vienna Convention on Diplomatic Relations. The unilateral removal of the privileges and immunities that provide for the safety and security of diplomats is not consistent with the principles or the effective functioning of the Vienna Convention.害羞草研究所�

Relations with New Delhi have hit a deep freeze since Trudeau announced on Sept.18 that Canadian intelligence services were investigating 害羞草研究所渁 potential link害羞草研究所� between India害羞草研究所檚 government and the killing of Hardeep Singh Nijjar, a Canadian Sikh leader in British Columbia.

Miller urged India 害羞草研究所渢o co-operate in the ongoing Canadian investigation.害羞草研究所�

Earlier Friday, India害羞草研究所檚 Ministry of External Affairs said its move to reduce the number of Canadian diplomats in India, who it says outnumber India害羞草研究所檚 staffing in Canada, was in line with diplomatic convention.

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India害羞草研究所檚 statement cited a passage from an international convention on diplomatic relations that says in the absence of agreement, a host country can require a diplomatic mission be kept within reasonable and normal limits.

害羞草研究所淲e reject any attempt to portray the implementation of parity as a violation of international norms,害羞草研究所� the statement read.

Trudeau said Friday that India害羞草研究所檚 actions toward Canadian diplomats 害羞草研究所渉as far-reaching consequences for the diplomatic world.害羞草研究所�

害羞草研究所淚t also has very real impacts on the millions of people who travel back and forth between India, as students and family members.害羞草研究所�

Officials said the move would slow down the processing of immigration applications, and Canada has issued a travel advisory for regions of India where it says it has been forced to reduce consular staffing.

The Canadian Press