Rescue workers are seen at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Rescue workers are seen at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Rescue workers are seen at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

A rescue worker walks at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo

Rescue workers are seen at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo REFILE - CLARIFYING LOCATION

One of the train carriages is pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo REFILE - CLARIFYING LOCATION

Train carriages are pictured at the scene where a train derailed in Carnate, Italy August 19, 2020. REUTERS/Daniele Mascolo REFILE - CLARIFYING LOCATION

A man wearing a slave collar hands a carnation to a police officer during a protest against the death in Minneapolis police custody of George Floyd, in St Louis, Missouri, U.S. June 4, 2020. REUTERS/Lawrence Bryant

A man wearing a slave collar hands a carnation to a police officer during a protest against the death in Minneapolis police custody of George Floyd, in St Louis, Missouri, U.S. June 4, 2020. REUTERS/Lawrence Bryant

A man wearing a slave collar hands carnations to a police officer during a protest against the death in Minneapolis police custody of George Floyd, in St Louis, Missouri, U.S. June 4, 2020. REUTERS/Lawrence Bryant

A woman wearing a traditional carnation and a protective face shield films as neighbours sing from balcnoies as the coronavirus lockdown regulations prevented them from holding traditional street parties to celebrate Madrid's patron saint San Isidro (Saint Isidore) in Madrid, Spain, May 15, 2020. REUTERS/Susana Vera

A woman wearing a carnation, part of Madrid's traditional "chulapa" attire, sings from her balcony as the coronavirus disease (COVID-19) lockdown regulations prevented residents from holding traditional street parties to celebrate Madrid's patron saint San Isidro (Saint Isidore) in Madrid, Spain, May 15, 2020. REUTERS/Susana Vera

A woman lays down carnations to mark Victory Day and the 75th anniversary of the end of World War Two at the Soviet War Memorial at Tiergarten Park in Berlin, Germany, May 8, 2020. REUTERS/Fabrizio Bensch

Two women hold carnations to mark Victory Day and the 75th anniversary of the end of World War Two at the Soviet War Memorial at Tiergarten Park in Berlin, Germany, May 8, 2020. REUTERS/Fabrizio Bensch

A carnation is placed to mark Victory Day and the 75th anniversary of the end of World War Two at the Soviet War Memorial at Tiergarten Park in Berlin, Germany, May 8, 2020. REUTERS/Fabrizio Bensch

A member of the communist-affiliated trade union PAME wearing a protective mask holds a carnation during a rally commemorating May Day, following the coronavirus disease (COVID-19) outbreak, in Athens, Greece, May 1, 2020 REUTERS/Goran Tomasevic

A member of the communist-affiliated trade union PAME wearing a protective mask holds carnations during a rally commemorating May Day, following the coronavirus disease (COVID-19) outbreak, in Athens, Greece, May 1, 2020 REUTERS/Goran Tomasevic

A member of the communist-affiliated trade union PAME wearing gloves raises a carnation during a rally commemorating May Day, following the coronavirus disease (COVID-19) outbreak, in Athens, Greece, May 1, 2020 REUTERS/Alkis Konstantinidis

Turkish police officers stand among carnations spread on the ground as trade union leaders attempt to defy a ban and march on Taksim Square to celebrate May Day, during a three-day curfew amid the spread of the coronavirus disease (COVID-19), in Istanbul, Turkey, May 1, 2020. REUTERS/Umit Bektas

Carnations are seen spread on the ground in front of Turkish police officers as trade union leaders attempt to defy a ban and march on Taksim Square to celebrate May Day, during a three-day curfew amid the spread of the coronavirus disease (COVID-19), in Istanbul, Turkey, May 1, 2020. REUTERS/Umit Bektas

Carnations are seen at a window during the 46th anniversary of the Carnation Revolution as the spread of the coronavirus disease (COVID-19) continues, in Lisbon, Portugal April 25, 2020. REUTERS/Rafael Marchante

Carnations and placards are laid on the spot where Turkish-Armenian journalist Hrant Dink was killed, during a commemoration to mark the 13th anniversary of his death, in Istanbul, Turkey January 19, 2020. Placards read: "For Hrant, for justice!" and "We are all Hrant. We are all Armenians!". REUTERS/Umit Bektas

Carnations and pictures of Diyarbakir Bar Association President Tahir Elci are seen during a commemoration on the fourth anniversary of his death from gunshot wounds, in Sur district in Diyarbakir, Turkey, November 28, 2019. REUTERS/Sertac Kayar

A carnation is placed on a monument inside the Athens Polytechnic, to mark the 46th anniversary of a 1973 student uprising against the military junta that ruled the country at the time, in Athens, Greece, November 16, 2019. REUTERS/Alkis Konstantinidis

A child leaves carnations on a monument inside the Athens Polytechnic, to mark the 46th anniversary of a 1973 student uprising against the military junta that ruled the country at the time, in Athens, Greece, November 16, 2019. REUTERS/Alkis Konstantinidis

Carnations and wreaths are laid on a monument inside the Athens Polytechnic, to mark the 46th anniversary of a 1973 student uprising against the military junta that ruled the country at the time, in Athens, Greece, November 16, 2019. REUTERS/Alkis Konstantinidis

A carnation is placed next to the names of fallen service members, at the Vietnam Veterans Memorial on the National Mall in Washington, DC. U.S., November 11, 2019. REUTERS/Siphiwe Sibeko

Carnations are seen next to a glass of vodka with a piece of bread on top during a celebration marking Victory Day at the Soviet War Memorial in Treptower Park, in Berlin, Germany, May 9, 2019. REUTERS/Annegret Hilse

A carnation is stuck in the base of the memorial during the celebrations to mark Victory Day at the Soviet War Memorial in Treptower Park in Berlin, Germany, May 9, 2019. REUTERS/Annegret Hilse

A member of the Night Wolves motorcycle group holds a carnation during the celebrations to mark Victory Day at the Soviet War Memorial in Treptower Park in Berlin, Germany, May 9, 2019. REUTERS/Annegret Hilse

A Member of the Night Wolves motorcycle group holds a carnation during the celebrations to mark Victory Day at the Soviet War Memorial in Treptower Park in Berlin, Germany, May 9, 2019. REUTERS/Annegret Hilse

A member of the communist-affiliated PAME wears a carnation during a rally commemorating May Day in Athens, Greece, May 1, 2019. REUTERS/Alkis Konstantinidis

A woman raises a carnation as she sings "The Internationale", during a rally organised by the communist-affiliated PAME commemorating May Day in Athens, Greece, May 1, 2019. REUTERS/Alkis Konstantinidis

A man wears a carnation during a rally organised by the communist-affiliated PAME commemorating May Day in Athens, Greece, May 1, 2019. REUTERS/Alkis Konstantinidis

A member of the communist-affiliated PAME holds a carnation during a rally commemorating May Day in Athens, Greece, May 1, 2019. REUTERS/Alkis Konstantinidis

A woman raises a carnation as she sings "The Internationale", during a rally organised by the communist-affiliated PAME commemorating May Day in Athens, Greece, May 1, 2019. REUTERS/Alkis Konstantinidis

Nurses wave white carnations in front of Santa Maria Hospital during a protest march in Lisbon, Portugal, March 8, 2019. REUTERS/Pedro Nunes

Nurses hold white carnations during a protest march in Lisbon, Portugal, March 8, 2019. REUTERS/Pedro Nunes

Nurses hold white carnations and hand-shaped placards reading "enough" during a protest march in Lisbon, Portugal, March 8, 2019. REUTERS/Pedro Nunes

Nurses dressed in white holding white carnations are seen during a protest march in Lisbon, Portugal, March 8, 2019. REUTERS/Pedro Nunes

A nurse with a black bow and white carnation is seen during a protest march in Lisbon, Portugal, March 8, 2019. REUTERS/Pedro Nunes

Protesters lay carnations and hold banners as they gather in support of Venezuelan President Nicolas Maduro's government in front of the Venezuelan Consulate in Istanbul, Turkey, February 1, 2019. REUTERS/Huseyin Aldemir

People hold red carnations during the flower lying ceremony as part of the Union of Donbass Volunteers Congress in Simferopol, Crimea December 23, 2018. REUTERS/Pavel Rebrov

People hold red carnations during the flower lying ceremony as part of the Union of Donbass Volunteers Congress in in Simferopol, Crimea December 23, 2018. REUTERS/Pavel Rebrov

People hold red carnations during the flower lying ceremony as part of the Union of Donbass Volunteers Congress in in Simferopol, Crimea December 23, 2018. REUTERS/Pavel Rebrov

Athens' Polytechnic school students carry a blood-stained Greek flag during a rally marking the 45th anniversary of a 1973 student uprising against the military dictatorship that was ruling Greece, in Athens, Greece, November 17, 2018. REUTERS/Costas Baltas TPX IMAGES OF THE DAY

A woman leaves carnations on a monument inside the Athens Polytechnic, to mark the 45th anniversary of a 1973 student uprising against the military junta that ruled the country at the time in Athens, Greece, November 16, 2018. REUTERS/Costas Baltas

A child leaves carnations on a monument inside the Athens Polytechnic, to mark the 45th anniversary of a 1973 student uprising against the military junta that ruled the country at the time in Athens, Greece, November 16, 2018. REUTERS/Costas Baltas

People leave carnations on a monument inside the Athens Polytechnic, to mark the 45th anniversary of a 1973 student uprising against the military junta that ruled the country at the time in Athens, Greece, November 16, 2018. REUTERS/Costas Baltas

Carnations are placed on a monument inside the Athens Polytechnic, to mark the 45th anniversary of a 1973 student uprising against the military junta that ruled the country at the time in Athens, Greece, November 16, 2018. REUTERS/Costas Baltas

Catalan President Quim Torra places a carnation next to draws depicting Catalan politicians who have been jailed or have fled the country as they attend an event to mark the first anniversary of the Catalan banned independence referendum in Sant Julia de Ramis, Spain, October 1, 2018. REUTERS/Jon Nazca TPX IMAGES OF THE DAY

Catalan President Quim Torra places a carnation next to draws depicting Catalan politicians who have been jailed or have fled the country as they attend an event to mark the first anniversary of the Catalan banned independence referendum in Sant Julia de Ramis, Spain, October 1, 2018. REUTERS/Jon Nazca