Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 17, 2021 Japan's Miho Nonaka in action during the women's semi final REUTERS/Denis Balibouse

People dump buckets of ice water on themselves during the annual spring event "Awakening" in the Siberian city of Tomsk, Russia April 17, 2021. REUTERS/Taisiya Vorontsova

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Charles Leclerc in action during practice REUTERS/Jennifer Lorenzini

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Carlos Sainz Jr. during practice REUTERS/Jennifer Lorenzini

Ex Royal Navy WREN officer Elaine Zerafa, Secretary of the Royal Naval Association (Malta Branch) holds a picture of Prince Philip to honour him before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, flanked by Reenactor members of the Malta Command WW2 Living History Group, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Aston Martin's Lance Stroll during practice REUTERS/Jennifer Lorenzini

Reenactor members of the Malta Command WW2 Living History Group honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Haas' Nikita Mazepin during practice REUTERS/Jennifer Lorenzini

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Red Bull's Sergio Perez during practice REUTERS/Jennifer Lorenzini

A picture and flowers are seen outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, on the day of Prince Philip's funeral, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Red Bull's Max Verstappen during practice REUTERS/Guglielmo Mangiapane

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 17, 2021 Slovenia's Katja Debevec in action during the women's semi final REUTERS/Denis Balibouse

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Mercedes' Lewis Hamilton in action during practice REUTERS/Jennifer Lorenzini

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 17, 2021 Slovenia's Katja Debevec in action during the women's semi final REUTERS/Denis Balibouse

Armed police officers stand guard behind wardens outside Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, near London, Britain April 17, 2021. REUTERS/Peter Cziborra

A woman lays flowers to honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Magazines and newspapers are displayed in a shop window on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, Britain, April 17, 2021. REUTERS/Carl Recine

A woman visits Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, to honour Prince Philip before his funeral in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Reenactor members of the Malta Command WW2 Living History Group honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Seagulls fly over the field as a farmer plants potatoes in Tilloy-lez-Cambrai, near Cambrai, France, April 17, 2021. REUTERS/Pascal Rossignol

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Mercedes' Lewis Hamilton during practice REUTERS/Jennifer Lorenzini

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Mercedes' Lewis Hamilton during practice REUTERS/Jennifer Lorenzini

Reenactor members of the Malta Command WW2 Living History Group and Ex Royal Navy WREN officer Elaine Zerafa, Secretary of the Royal Naval Association (Malta Branch) hold a picture of Prince Philip to honour him before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Police patrol along the Long Walk near Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, Britain, April 17, 2021. REUTERS/Carl Recine

Reenactor members of the Malta Command WW2 Living History Group and Ex Royal Navy WREN officer Elaine Zerafa, Secretary of the Royal Naval Association (Malta Branch) salute to honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Aston Martin's Sebastian Vettel during practice REUTERS/Jennifer Lorenzini

Reenactor members of the Malta Command WW2 Living History Group and Ex Royal Navy WREN officer Elaine Zerafa, Secretary of the Royal Naval Association (Malta Branch) hold a picture of Prince Philip to honour him before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Mercedes' Lewis Hamilton during practice REUTERS/Guglielmo Mangiapane

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Mercedes' Valtteri Bottas during practice REUTERS/Jennifer Lorenzini

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Charles Leclerc during practice REUTERS/Guglielmo Mangiapane

Police walk outside Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, Britain, April 17, 2021. REUTERS/Molly Darlington

Police walk outside Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, Britain, April 17, 2021. REUTERS/Molly Darlington

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Carlos Sainz Jr. during practice REUTERS/Guglielmo Mangiapane

People are seen at the Long Walk avenue near Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, Britain, April 17, 2021. REUTERS/Molly Darlington

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Red Bull's Sergio Perez during practice REUTERS/Guglielmo Mangiapane

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Alpine's Fernando Alonso during practice REUTERS/Jennifer Lorenzini

Members of the media gather outside Windsor Castle on the day of the funeral of Britain's Prince Philip, husband of Queen Elizabeth, who died at the age of 99, in Windsor, near London, Britain April 17, 2021. REUTERS/Peter Cziborra

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Charles Leclerc during practice REUTERS/Jennifer Lorenzini

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 17, 2021 Switzerland's Sascha Lehmann in action during the men's semi final REUTERS/Denis Balibouse

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 17, 2021 Switzerland's Sascha Lehmann in action during the men's semi final REUTERS/Denis Balibouse

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Florian Wellbrock in action during the men's 400m freestyle REUTERS/Annegret Hilse

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari's Charles Leclerc leaves the garage during practice REUTERS/Guglielmo Mangiapane

A farmer drives a tractor in his field while planting potatoes in Tilloy-lez-Cambrai, near Cambrai, France, April 17, 2021. Picture taken with a drone REUTERS/Pascal Rossignol

A man wearing a face mask depicting Britain's Prince Philip, husband of Queen Elizabeth, looks on, on the day of the funeral of the Prince who died at the age of 99, in Windsor, near London, Britain April 17, 2021. REUTERS/Peter Cziborra

A person lays flowers to honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Haas' Mick Schumacher in action during practice REUTERS/Jennifer Lorenzini

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Leonie Kullmann in action during the women's 400m freestyle REUTERS/Annegret Hilse

A woman wearing a face mask is seen reflected in a window with a displayed picture of Britain's Prince Philip, husband of Queen Elizabeth, on the day of the funeral of the Prince who died at the age of 99, in Windsor, near London, Britain April 17, 2021. REUTERS/Peter Cziborra

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Ramon Klenz after the men's 200m butterfly REUTERS/Annegret Hilse

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Ramon Klenz after the men's 200m butterfly REUTERS/Annegret Hilse

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Ramon Klenz in action during the men's 200m butterfly REUTERS/Annegret Hilse

Asylum-seeking migrants' families wait to be transported by the U.S. Border Patrol after crossing the Rio Grande river into the United States from Mexico, in Roma, Texas, U.S. April 17, 2021. REUTERS/Go Nakamura

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 17, 2021 Ferrari team principal Mattia Binotto during practice REUTERS/Guglielmo Mangiapane

Asylum-seeking migrants' families wait to be transported by the U.S. Border Patrol after crossing the Rio Grande river into the United States from Mexico, in Roma, Texas, U.S. April 16, 2021. Picture taken April 16, 2021. REUTERS/Go Nakamura

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Marius Kusch after the men's 100m freestyle REUTERS/Annegret Hilse

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Annika Bruhn after the women's 100m freestyle REUTERS/Annegret Hilse

Asylum-seeking migrants' families walk to the location where they turn themselves in to the U.S. Border Patrol, after crossing the Rio Grande river into the United States from Mexico, in Roma, Texas, U.S. April 16, 2021. Picture taken April 16, 2021. REUTERS/Go Nakamura

Asylum-seeking migrants' families wait to be transported by the U.S. Border Patrol after crossing the Rio Grande river into the United States from Mexico, in Roma, Texas, U.S. April 16, 2021. Picture taken April 16, 2021. REUTERS/Go Nakamura

A woman lays flowers to honour Prince Philip before his funeral, outside Villa Guardamangia, a former residence of Britain's then-Princess Elizabeth and Prince Philip between 1949 and 1951, in Pieta, Malta April 17, 2021. REUTERS/Darrin Zammit Lupi

Swimming - DSV Olympic Qualification - Europa Sportpark, Berlin, Germany - April 17, 2021 Franziska Hentke in action during the women's 200m butterfly REUTERS/Annegret Hilse