India has expelled a Canadian diplomat with five days' notice to leave the country, just hours after Ottawa expelled the South Asian nation's top intelligence agent and accused it of a role in the murder of a Sikh separatist leader.
The development was the latest in an escalating row between the two nations, with Canada saying on Monday it was "actively pursuing credible allegations" linking Indian government agents to the murder in British Columbia in June.
The Canadian high commissioner, or ambassador, in New Delhi had been summoned and told of the expulsion decision, India's foreign ministry said in a statement.
Earlier on Tuesday, India dismissed the Canadian accusation as "absurd and motivated" and urged it instead to take legal action against anti-Indian elements operating from its soil.
Hardeep Singh Nijjar, 45, was shot dead outside a Sikh temple on June 18 in Surrey, a Vancouver suburb with a large Sikh population.
The US and Iran failed to reach an agreement to end their war despite marathon talks that concluded on Sunday in the Pakistani capital Islamabad, jeopardising a fragile ceasefire.
Russia and Ukraine accused each other on Sunday of breaching the 32-hour ceasefire in their four-year war, reporting more than a thousand drone and shelling attacks just hours after the truce began on Saturday to mark Orthodox Easter.
At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.
Negotiations between the United States and Iran appeared to have concluded for now, Iran's government has announced early on Sunday, after a series of talks in Pakistan to end the six-week war between Washington and Tehran.