September 23: Tuesday's top stories in 10 minutes

US President Donald Trump questions value of United Nations, accusing it of funding uncontrolled migration in speech at 80th general assembly. 

Canada's Public Safety Minister Gary Anandasangaree launches gun buyback program, after being caught on tape saying police lack the resources to enforce it. 

Super Typhoon Regasa is heading toward Hong Kong and mainland China, forcing many to evacuate and stock up on supplies. 

Some people are questioning a Toronto area school board's decision to ban Every Child Matters flags...

CBC News has learned that Marineland, a once popular Ontario amusement park, wants to move its remaining beluga whales out of the country.