French President Emmanuel Macron elbow bumps with Ukraine's President Volodymyr Zelenskiy as he arrives for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans in action during his quarter final match against Belgium's David Goffin REUTERS/Eric Gaillard

A man carries a funeral wreath with the words "Apologize but they don't let us bury your loved ones" to be laid out by funeral workers as Rome's cemeteries run out of space to store coffins ahead of funerals as a back-log in services due to coronavirus disease (COVID-19) restrictions have slowed down the pace for burials, in Rome, Italy, April 16, 2021. REUTERS/Yara Nardi

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans in action during his quarter final match against Belgium's David Goffin REUTERS/Eric Gaillard

A Palestinian woman prays in front of the Dome of the Rock in the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City, on the first Friday of the holy month of Ramadan, as coronavirus disease (COVID-19) restrictions ease around the country, April 16, 2021. REUTERS/Ammar Awad

A Palestinian woman prays in front of the Dome of the Rock in the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City, on the first Friday of the holy month of Ramadan, as coronavirus disease (COVID-19) restrictions ease around the country, April 16, 2021. REUTERS/Ammar Awad

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

A Palestinian woman reads the Quran at the Dome of the Rock in the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City, on the first Friday of the holy month of Ramadan, as coronavirus disease (COVID-19) restrictions ease around the country, April 16, 2021. REUTERS/Ammar Awad

Palestinian men pray at the Dome of the Rock in the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City, on the first Friday of the holy month of Ramadan, as coronavirus disease (COVID-19) restrictions ease around the country, April 16, 2021. REUTERS/Ammar Awad

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

A Palestinian woman reads the Quran at the Dome of the Rock in the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount in Jerusalem's Old City, on the first Friday of the holy month of Ramadan, as coronavirus disease (COVID-19) restrictions ease around the country, April 16, 2021. REUTERS/Ammar Awad

French President Emmanuel Macron welcomes Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron welcomes Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

Muslims sit along a road as they wait to attend Friday prayer during the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

French President Emmanuel Macron and his wife Brigitte Macron welcome Ukraine's President Volodymyr Zelenskiy and his wife Olena for a working lunch at the Elysee Palace in Paris, France, April 16, 2021. REUTERS/Benoit Tessier

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

A Muslim man wears a protective mask as he attends Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Peshawar, Pakistan, April 16, 2021. REUTERS/Fayaz Aziz

Muslims take part in Friday prayer as part of the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan April 16, 2021. REUTERS/Akhtar Soomro

Democratic Party founder and barrister Martin Lee leaves the West Kowloon Courts after getting his suspended sentence on unauthorised assembly, in Hong Kong, China April 16, 2021. REUTERS/Tyrone Siu

People queue up outside a mass vaccination centre as Latvia opens walk in coronavirus disease (COVID-19) vaccination scheme in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans


General view of a mass vaccination centre as Latvia opens walk-in coronavirus disease (COVID-19) vaccination scheme, in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans

Muslims attend Friday prayer during the holy fasting month of Ramadan amid the coronavirus disease (COVID-19) pandemic, in Karachi, Pakistan, April 16, 2021. REUTERS/Akhtar Soomro

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Belgium's David Goffin in action during his quarter final match against Britain's Dan Evans REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Belgium's David Goffin in action during his quarter final match against Britain's Dan Evans REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans reacts during his quarter final match against Belgium's David Goffin REUTERS/Eric Gaillard

A health worker takes care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

A health worker takes care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

A health worker takes care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

A woman wearing a face mask with the Transgender Pride Flag takes part in a protest outside the headquarters of the ruling Spanish Socialist Workers' Party (PSOE) to demand support for a law that would allow for the self-determination of gender identity, in Madrid, Spain, April 16, 2021. REUTERS/Susana Vera

A health worker takes care of a patient suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

A health worker takes care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans in action during his quarter final match against Belgium's David Goffin REUTERS/Eric Gaillard

Tennis - ATP Masters 1000 - Monte Carlo Masters - Monte-Carlo Country Club, Roquebrune-Cap-Martin, France - April 16, 2021 Britain's Dan Evans in action during his quarter final match against Belgium's David Goffin REUTERS/Eric Gaillard

A health worker takes care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

Health workers take care of patients suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

Health workers take care of a patient suffering from the coronavirus disease (COVID-19) in an intensive care unit at Montlegia CHC clinic in Liege, Belgium April 16, 2021. REUTERS/Yves Herman

Formula One F1 - Emilia Romagna Grand Prix - Autodromo Enzo e Dino Ferrari, Imola, Italy - April 16, 2021 Mercedes' Valtteri Bottas in action during practice REUTERS/Jennifer Lorenzini

A man reads a book while he stands in a queue outside a mass vaccination centre as Latvia opens walk-in coronavirus disease (COVID-19) vaccination scheme in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans


Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), speaks to the media as she visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), speaks to the media as she visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), speaks to the media as she visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), speaks to the media as she visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

A man receives his first dose of the AstraZeneca coronavirus disease (COVID-19) vaccine at a mass vaccination centre in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

A man receives his first dose of the AstraZeneca coronavirus disease (COVID-19) vaccine at a mass vaccination centre in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

People queue up outside a mass vaccination centre as Latvia opens walk-in coronavirus disease (COVID-19) vaccination scheme in Riga, Latvia, April 16, 2021. REUTERS/Janis Laizans

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Scotland's First Minister Nicola Sturgeon, leader of the Scottish National Party (SNP), visits the Thornliebank Dental Care centre during the election campaign in Glasgow, Scotland, Britain April 16, 2021. Jane Barlow/Pool via REUTERS

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 16, 2021 Italy's Ludovico Fossali holds on to a hand hold during the men's qualifications REUTERS/Denis Balibouse

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 16, 2021 Italy's Ludovico Fossali during the men's qualifications REUTERS/Denis Balibouse

Democratic Party founder and barrister Martin Lee leaves the West Kowloon Courts after getting his suspended sentence on unauthorised assembly, in Hong Kong, China April 16, 2021. REUTERS/Tyrone Siu

Democratic Party founder and barrister Martin Lee leaves the West Kowloon Courts after getting his suspended sentence on unauthorised assembly, in Hong Kong, China April 16, 2021. REUTERS/Tyrone Siu TPX IMAGES OF THE DAY

Climbing - IFSC Climbing World Cup - Climbing Center Haslital, Meiringen, Switzerland - April 16, 2021 France's Pierre Le Cerf cleans the wall during the men's qualifications REUTERS/Denis Balibouse