Protesters attempt to topple a statue of Albert Pike during an event to mark Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, amid nationwide protests against racial inequality, in Washington, D.C., U.S., June 19, 2020.

Black gun owners take part in a rally in support of the second amendment in Oklahoma City, Oklahoma, U.S., June 20, 2020.

A visitor wearing a face mask looks on as Italy's La Scala opera house reopens to the public for the first time since the coronavirus disease (COVID-19) outbreak, with new social distancing and hygiene rules, in Milan, Italy, June 21, 2020.

Russian servicemen ride tanks along the street during a rehearsal for the Victory Day parade in Moscow, Russia June 20, 2020. The military parade marking the 75th anniversary of the victory over Nazi Germany in World War Two was planned for May 9 and postponed due to the outbreak of the coronavirus disease (COVID-19).

Swiss police officers wearing protective masks carry away a protestor as activists of environmental group Extinction Rebellion block the Quaibruecke bridge, amid the coronavirus disease (COVID-19) outbreak, in Zurich, Switzerland June 20, 2020.

People participate in an outdoor yoga class by LMNTS Outdoor Studio, in a dome to facilitate social distancing and proper protocols to prevent the spread of coronavirus disease (COVID-19), in Toronto, Ontario, Canada June 21, 2020.

Swiss police officers wearing protective masks carry away a protestor as activists of environmental group Extinction Rebellion block the Quaibruecke bridge, amid the coronavirus disease (COVID-19) outbreak, in Zurich, Switzerland June 20, 2020.

An Oklahoma National Guard soldier stands outside the venue of U.S. President Donald Trump's rally in Tulsa, Oklahoma, U.S., June 20, 2020.

People use a walking and biking path with 'Black Lives Matter' painted on it, in Atlanta, Georgia, U.S. June 20, 2020.

A student gestures as he waits with other students of the Cultural High School Class 2020 to receive their diplomas during a graduation ceremony on their cars, to keep social distancing, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico June 19, 2020.

Fireworks explode over the statue of Confederate General Robert E. Lee during an event to mark Juneteenth, which commemorates the end of slavery in Texas, two years after the 1863 Emancipation Proclamation freed slaves elsewhere in the United States, amid nationwide protests against racial inequality, in Richmond, Virginia, U.S., June 19, 2020. Mallory Noe-Payne via REUTERS

A flag flutters as security officers patrol while revellers celebrate near Stonehenge stone circle, despite official Summer Solstice celebrations being cancelled due to the spread of the coronavirus disease (COVID-19), near Amesbury, Britain June 20, 2020.

People look on as an image of Harriet Tubman is projected on the statue of Confederate General Robert E. Lee in Richmond, Virginia, U.S. June 20, 2020.

A view shows an apartment block, which partially collapsed after a suspected gas explosion, in Kyiv, Ukraine June 21, 2020.

U.S. President Donald Trump deplanes Air Force One on his way back to the White House after holding a campaign rally in Tulsa, at Joint Base Andrews, Maryland, U.S., June 20, 2020. Picture taken June 20, 2020.

Supporters of U.S. President Donald Trump walk outside the venue for Trump's rally in Tulsa, Oklahoma, U.S., June 20, 2020.

A supporter of U.S. President Donald Trump shoots a video with his mobile phone from the sparsely filled upper decks of the arena as the president addresses his first re-election campaign rally in several months in the midst of the coronavirus disease (COVID-19) outbreak, at the BOK Center in Tulsa, Oklahoma, U.S., June 20, 2020.

U.S. President Donald Trump pumps his fist as he enters his first re-election campaign rally in several months in the midst of the coronavirus disease (COVID-19) outbreak, at the BOK Center in Tulsa, Oklahoma, U.S., June 20, 2020.

A protester shouts outside the venue of U.S. President Donald Trump's rally in Tulsa, Oklahoma, U.S., June 20, 2020.

Medical workers rest near a site for nucleic acid tests, following a new outbreak of the coronavirus disease (COVID-19) in Beijing, China June 20, 2020.

Black Lives Matter demonstrators hold a "die-in" to protest against racial injustice in Gilmanton, New Hampshire, U.S., June 20, 2020.

A crow stands on a roof as a partial solar eclipse is observed in Nairobi, Kenya, June 21, 2020.

Palestinian boys perform during a yoga and flexibility class on International Yoga Day amid the coronavirus disease (COVID-19) crisis, in a club in Gaza City June 21, 2020.

A demonstrator smiles as people march to Westminster during a Black Lives Matter protest, following the death of George Floyd in Minneapolis police custody, in London, Britain June 21, 2020.

Police officers carry flowers left by people next to the police cordon at the scene of multiple stabbings in Reading, Britain, June 21, 2020.

A tourist swims in the Aqaba Gulf at the Red Sea resort of Sharm el-Sheikh, amid the coronavirus disease (COVID-19) outbreak, Egypt June 20, 2020.

A supporter of U.S. President Donald Trump talks with a woman during a protest against racial injustice near the site of a rally by U.S. President Donald Trump in Tulsa, Oklahoma, U.S., June 20, 2020.

A woman wearing a face mask amid the spread of the coronavirus disease (COVID-19) observes a partial solar eclipse on the Mahanakhon Skywalk Glass Tray at the King Power Mahanakhon building in Bangkok, Thailand, June 21, 2020.

People dance as students attend a protest against threats to academic freedom in Budapest, Hungary, June 21, 2020.

A man reads a book as people gather on Parliament Square next to a statue of Winston Churchill during a Black Lives Matter protest, following the death of George Floyd in Minneapolis police custody, in Westminster, in London, Britain June 21, 2020.

Tennis - Adria Tour - Zadar, Croatia - June 21, 2020 Serbia's Novak Djokovic celebrates winning his match against Croatia's Nino Serdarusic.

A bird sits on a dragon sculpture at a temple during a solar eclipse at Budai township, Chiayi county, Taiwan, June 21,2020.

A burnt Make America Great Again (MAGA) hat lies on the ground during a protest against racial injustice near the site of a rally by U.S. President Donald Trump in Tulsa, Oklahoma, U.S., June 20, 2020.

People look on as the sun rises during Summer Solstice, as seen from Roker Beach in Sunderland, Britain June 21, 2020.

Revellers shield themselves as they celebrate in the rain near Stonehenge stone circle, despite official Summer Solstice celebrations being cancelled due to the spread of the coronavirus disease (COVID-19), near Amesbury, Britain, June 21, 2020.

Soccer Football - Serie A - Inter Milan v Sampdoria - San Siro, Milan, Italy - June 21, 2020 Inter Milan's Lautaro Martinez celebrates scoring their second goal, as play resumes behind closed doors following the outbreak of the coronavirus disease (COVID-19).