Police in Canada have confirmed that 14 people were killed when a lorry and a bus carrying a junior ice hockey team collided on Friday evening.
A school shooting in the US state of Florida is understood to have caused a number of casualties, according to reports.
Several people have been injured, and a suspect has been taken into custody, after a car crashed outside the US National Security Agency’s headquarters.
At least 58 people have been killed, and 515 others injured, in a shooting at a outdoor festival in Las Vegas, according to the latest figures released by police.
At least 50 people have been killed, and more than 200 injured, after a gunman opened fire on an open-air concert in Las Vegas, in the United States.
At least five people are injured, following a series of incidents in Edmonton, Canada which police are investigating as possible acts of terrorism.
At least 30 people have been killed over the weekend, due to a recent widespread surge in drug gang violence and related murders, in Mexico.
At least three people have been killed, and another wounded, following a suspected racially-motivated shooting, in the US state of California.
At least 24 people have been killed, and a further nine were injured, after a bus collided with a fuel tanker, in southwestern Mexico.
At least seven construction workers have been killed, and 10 others were injured, following the collapse of a partially-constructed car park in the Mexican capital, Mexico City.