US hurdler Russell and Brazil's Dos Santos break world records at Diamond League meet

ZURICH (AP) — A couple of world records were broken less than 40 minutes apart at the Diamond League on Thursday, with Alison dos Santos of Brazil smashing the men’s 400-meter hurdles record and Masai Russell of the U.S. breaking the women's 100-meter hurdles mark.

Russell, the Olympic champion, set a time of 12.09 seconds, taking 0.03 off the previous world record held by Nigeria’s Tobi Amusan.

Amusan was second in a season-best 12.23, and European champion Nadine Visser finished third in 12.34.

Dos Santos crossed the line in 45.80 seconds at the Weltklasse to take 0.14 seconds off the world record set by Karsten Warholm of Norway at the Tokyo Olympics in 2021.

Warholm finished second Thursday in 46.69.

The 26-year-old Dos Santos was the 2022 world champion and is a two-time Olympic bronze medalist.

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Brazil's Alison dos Santos celebrates after winning the men's 400-meter hurdles, setting a new world record, at the Diamond League athletics meeting, Thursday, Aug. 27, 2026, in Zurich, Switzerland. (Claudio Thoma/Keystone via AP)

Brazil's Alison dos Santos celebrates winning the men's 400-meter hurdles, setting a new world record, at the Diamond League athletics meeting, Thursday, Aug. 27, 2026, in Zurich, Switzerland. (Jean-Christophe Bott/Keystone via AP)

Brazil's Alison dos Santos celebrates winning the men's 400-meter hurdles, setting a new world record, at the Diamond League athletics meeting, Thursday, Aug. 27, 2026, in Zurich, Switzerland. (Jean-Christophe Bott/Keystone via AP)

United States' Masai Russell celebrates winning the women's 100-meter hurdles race, setting a new world record, at the Diamond League athletics meeting, Thursday, Aug. 27, 2026, in Zurich, Switzerland. (Jean-Christophe Bott/Keystone via AP)

United States' Masai Russell celebrates after winning the women's 100-meter hurdles race, setting a new world record, at the Diamond League athletics meeting, Thursday, Aug. 27, 2026, in Zurich, Switzerland. (Jean-Christophe Bott/Keystone via AP)

U.S. officials said about 90 U.S. citizens remained unaccounted for Thursday, a day after catastrophic flash floods engulfed a border area of China and Nepal, killing hundreds of people.

In a statement, the U.S. State Department said it is not aware of any U.S. deaths, but three Americans have been rescued.

Many of the missing were on a pilgrimage to Mount Kailash in Tibet, a sacred site for Hindus, Buddhists and others.

Social media posts were surfacing Thursday from loved ones pleading for people to provide updates or circulate information about Americans they had lost contact with — a Virginia woman traveling with a tour group, a Texas couple on a birthday trip, a mother accompanying her 14-year-old daughter.

Among those on a guided tour was Venus Rajnikant Patel, a 45-year-old Indian-born U.S. citizen who recently moved from St. Louis to Cincinnati to help his family.

Patel’s friend Jolene Gosha said she and her friends knew Patel was in Nepal and were devastated when they realized he was staying at a hotel along the border where the floods swept through.

“We’re just hoping, hoping that by some chance he was able to climb his way out of it,” Gosha said. “I don’t want to give myself false hope because I know the reality is that he's probably not with us.”

Gosha described Patel as an avid traveler who loves dancing and frequently organizes surprise “flash mob” performances for his friends’ weddings and birthdays.

“He’s always smiling from ear to ear,” Gosha said. “He’d dance so goofily and didn’t care who was watching.”

Indian spiritual guru Jaggi Vasudev, also known as Sadhguru, said in a post on X that 77 people returning from Mount Kailash with groups organized by his Isha Foundation were at an immigration center in Gyirong, Tibet, when the floods struck. The Isha Foundation told ABC News that 22 of those 77 people were Americans.

The Isha Foundation is a spiritual organization based in India and has a U.S. campus called the Isha Institute of Inner-sciences, a yoga and meditation retreat center in the mountains near McMinnville, Tennessee.

Talking to reporters in the Oval Office on Thursday, President Donald Trump said U.S. officials have spoken with Nepalese leaders and offered to provide “anything they want.”

Trump said there were 50 or 60 Americans in the area but added that a full accounting hasn’t been completed.

Associated Press writers Matthew Lee and Collin Binkley in Washington contributed to this report.

People walk past damage in the aftermath of flash floods in Devighat in the Nuwakot district in Nepal, Thursday, Aug. 27, 2026. (AP Photo/Niranjan Shrestha)

Damage is seen in the aftermath of flash floods in Devighat in the Nuwakot district in Nepal, Thursday, Aug. 27, 2026. (AP Photo/Niranjan Shrestha)

A government helicopter conducts a rescue mission amidst the devastation left by flash flooding in Nepal's Nuwakot district, Thursday, Aug. 27, 2026. (AP Photo/Rajesh Kumar Singh)