Olympics Live Updates: Opening Ceremony Floats Down Seine as Paris Investigates Rail Sabotage

The sprawling ceremony is being held under rainy skies. Earlier, coordinated arson attacks disrupted service on three high-speed links to Paris, causing delays affecting more than a million travelers.

Rail Sabotage Blights an Olympic Moment for France

The arson attacks were carefully planned to cause maximum disruption on a train network so vast it is virtually impossible to fully secure.

Jasper Fire Worsened by Pyrocumulonimbus Cloud

Blazes that generate such stormy conditions can be nearly impossible to put out and pose special dangers to firefighters.

LeBron James and Coco Gauff are the U.S. Flag Bearers

The N.B.A. star LeBron James of the Los Angeles Lakers and the tennis star Coco Gauff were chosen by their peers to lead the United States at the opening ceremony in Paris.

Who Was the Heavy Metal Band at Opening Ceremony? That Was Gojira.

Gojira, a popular French band, became the first hard rock act to perform in an Olympic Games opening ceremony when it did a metal version of “Ah! Ça Ira,” a song that was popular during the French Revolution.