CESENA: This aerial photo, taken on Thursday, May 18, shows a flooded street in Cesena, Italy. At least nine people have been killed by heavy flooding and mudslides in the northern Italian region of Emilia Romagna, and as many as 20,000 residents are being forced to evacuate, according to local authorities. (Alessandro Serrano/AFP/Getty Images)

FAENZA: Speleological alpine rescuers search for missing persons in a flooded area near a supermarket in the city of Cesena on Wednesday, May 17 (Alessandro Serrano/AFP/Getty Images)

FORLÌ: Firemen and civil protection rescuers evacuate a woman with an inflatable boat in the city of Forli in Italy's northern Emilia-Romagna region on Wednesday, May 17, following severe flooding (AFP/Getty Images)

MADRID: Firefighters play drums and chant slogans during a demonstration in Madrid on Tuesday, May 18. They were calling for a national, legal framework for fire services that would regulate employment and working conditions (Guillermo Gutierrez Carrascal/SOPA Images/LightRocket/Getty Images)

LIVERPOOL: Sweden's Loreen performs on stage at the Eurovision Song Contest, which she won on Saturday, May 13. She became just the second performer to win the competition more than once, clinching victory with the pop ballad "Tattoo." (Dominic Lipinski/Getty Images)

SAN DIEGO: Entertainer Steve-O, best known for his appearances in the "Jackass" movie series, spits fire while throwing the ceremonial first pitch at a Major League Baseball game in San Diego on Monday, May 15 (Gregory Bull/AP)

HONG KONG: People perform during a parade celebrating the Tin Hau festival in Hong Kong on Friday, May 12.(Lam Yik/Reuters)

NEW YORK: Britain's Prince Harry, center, and his wife Meghan, the Duchess of Sussex, attend the Women of Vision Awards in New York on Tuesday, May 16. After the event, the couple was involved in a chaotic car chase with paparazzi that could have resulted in a "catastrophic" outcome, their spokeperson alleged (Selcuk Acar/Anadolu Agency/Getty Images)

VELYKA: A man plants sunflowers in his garden near a damaged Russian tank in the Ukrainian village of Velyka Dymerka on Wednesday, May 17.(Efrem Lukatsky/AP)

BAKHMUT: Ukrainian servicemen rest at their positions near the front-line city of Bakhmut on Thursday, May 11 (Radio Free Europe/Radio Liberty/Serhii Nuzhnenko/Reuters)