A US ban on several Canadian imports, including alcohol, dairy and motorcycles, has come into effect as a trade war between the two neighbours drags on.

The latest measure by the Trump administration is in response to Canada's implementation of tariffs on a range of US goods earlier this month following a breakdown in trade talks.

Canada is not expected to retaliate further, with Prime Minister Mark Carney saying earlier this month that the impact the import bans will have on Canada's economy is "modest".

Trade talks remain on ice, with US trade representative Jamieson Greer telling CNBC recently that President Donald Trump is "comfortable" with his current relationship with Canada.

"They call us now and then and we have good conversations about potential deals. But there's no urgency on our side," Greer said of relations with Canada in an interview with the US network last week.

Tuesday's trade ban applies to nearly C$1bn ($710m; £530m) worth of Canadian liquor exported to the US, as well as whey products used in protein powder.

Motorcycle exports to the US will also be impacted, though Canada only sent about 5,000 motorcycles south of the border in 2025 that were worth about C$120m, according to national data by Statistics Canada, meaning the impact would be limited.

The import bans were first announced by Trump in a series of executive orders signed on 8 September. In them, Trump said the measures are in response to "continued discrimination" by Canada on US dairy, automotives and alcohol.

Speaking to reports on Monday, he accused Canada of "treating the United States very unfairly".

"They have been one of the worst countries in the entire world," Trump said.