A high temperature alerts were issued as a record-setting summer heat wave continued to bake most parts of south China. (Reuters)

Some of London's telephone operators and engineers, trying out their gas masks at the anti-gas civilian training centre in Gloucester, where they were taught how to deal with gas attacks. (Photo by Harry Todd/Fox Photos/Getty Images). 13th February 1937

A girl performs martial arts during a function to mark International Women's Day at a school in Hyderabad, India, on March 7, 2014. (Photo by Mahesh Kumar A./Associated Press)

Vietnamese female commissioned officers of the signal force march during a parade marking their 70th National Day at Ba Dinh square in Hanoi, Vietnam September 2, 2015. (Photo by Reuters/Kham)

People stand in front of a black ribbon, symbolising remembrance and mourning, being projected onto the Sydney Opera House on February 9, 2023 in solidarity with Turkey and Syria after a massive earthquake devastated the two countries. (Photo by David Gray/AFP Photo)

This image released by Paramount Pictures shows American singer Andra Day in “The United States vs Billie Holiday”. Day accepted the award best actress in a motion picture drama at the Golden Globe Awards on Sunday, February 28, 2021. (Photo by Takashi Seida/Paramount Pictures via AP Photo)

U.S. President Donald Trump boards Air Force One to depart for Vietnam from Beijing Airport in Beijing, China on November 10, 2017. (Photo by Jonathan Ernst/Reuters)

A photographer in Somerset, South West England captured the mating rituals of toads as several males attempt to mate with one female all at once. (Photo by John Waters/NPL)