Here are some of the stories we are covering from around the world:

The Young Lives Lost and Upended in Canada’s Mass Shooting

The attack at a secondary school and a private residence in the small, remote community in British Columbia, Canada on Tuesday has left families stunned and grief-stricken.

Ukrainian Olympian Is Disqualified Over Helmet Honoring War Dead

A Ukrainian athlete was disqualified from the Winter Olympics on Thursday over his plans to wear a helmet honoring countrymen killed in the war with Russia, a decision that drew outrage and touched off the biggest crisis of the Games in Italy.

Mexico Risks Losing Its Measles-Free Status, Months Before Millions Arrive for World Cup

Mexico, like its neighbors to the north, has been struggling to keep a resurgence of measles in check. Now, as the virus continues to spread and cases pile up, the country appears to be on the brink of losing a hard-won place among nations that have eliminated the disease.

@nytimes