The Canada Border Services Agency (CBSA) says officers at the Ambassador Bridge have seized a semi-automatic weapon with four over-capacity magazines.
In a Wednesday evening post on X, formerly Twitter, the agency did not say when the incident took place.
It said only that officers seized the rifle from a traveller, fined the individual and refused them entry into Canada.
Kolo Muani has scored on debut for Juventus but Serie A leader Napoli has come back for a 2-1 win that was inspired by Romelu Lukaku
A frenzied first week for Donald Trump has ended with a stop in Las Vegas where the US president has doubled down on an election pledge to dump taxes on tips.
Real Madrid have moved four points clear atop the Spanish league with a 3-0 win as nearest rivals Atletico Madrid could only manage a draw.
French league leaders Paris Saint-Germain could only manage a 1-1 home draw against Reims while Monaco beat Rennes 3-2 to move up to third place
Democrats and others criticise President Donald Trump for firing independent watchdogs at multiple government agencies in a letter citing "changing priorities".
Harry Kane has scored for the first time from open play since November as Bayern Munich moved six points clear in Germany with a 2-0 win at Freiburg.
Tennis great Novak Djokovic has posted a scan of his hamstring injury on social media in a pointed riposte to his critics and doubters.
New research indicates 17 per cent of drivers involved in road crashes have drugs or alcohol in their system.
Mohamed Salah has scored his 100th Anfield league goal as they thrashed Ipswich 4-1 to stay six points ahead of Arsenal, who won 1-0 at Wolves, in the EPL.
Elon Musk made a cameo at a German far right political party's campaign event, while tens of thousands of protesters rallied in Berlin against extremist views.
Jason Scrivener has burst from nowhere into third place in the European tour's Ras Al Khaimah Championship in the UAE after a brilliant third-round 65.
A top European Union military official is in favour of stationing European Union soldiers in Greenland.
Police are investigating the alleged murder of a nine-year-old boy in far north Queensland.
Tilak Varma has almost single-handedly won the day against England, scoring an unbeaten 72 in India's two-wicket victory in the second T20 international.
Madison Keys has credited her close-knit team for believing in her when she didn't after breaking through to claim her first grand slam title at Melbourne Park.
The Senate has confirmed Kristi Noem as homeland security boss, putting the South Dakota governor in charge of an agency set to clamp down on illegal migration.
Macarthur boss Mile Sterjovski says the club's long-term strategy is now bearing fruit with several young Australians netting moves overseas.
AFL legend Neale Daniher has been awarded the 2025 Australian of the Year for his tireless advocacy for a cure for motor neurone disease.
Australia's women's cricketers are planning to display their ruthless streak in their highly-anticipated Ashes Test match against England.
More than 450 people have been recognised for their achievements in the 2025 Australia Day Honours List.
