India has stopped issuing visas to Canadian citizens amid an escalating row over the killing of a Sikh separatist on Canadian soil.

India said the temporary move was due to “security threats” disrupting work at its missions in Canada.

Tensions flared this week after Prime Minister Justin Trudeau said India may have been behind the 18 June killing.

But Mr Trudeau said on Thursday he was not looking to provoke India with the allegation.

India has angrily rejected the allegation calling it “absurd”.