Vice Chancellor, Economy and Energy Minister Sigmar Gabriel speaks at a German Social Democrats (SPD) party campaign event prior to regional elections on September 2, 2016 in Rostock, north-eastern Germany. Regional elections will be held on September 4, 2016 on German Chancellor Angela Merkel's home turf of Mecklenburg-Western Pomerania, where her Christian Democratic Union (CDU) party is trailing in the polls. / AFP PHOTO / Adam BERRYADAM BERRY/AFP/Getty Images

EDITORS NOTE: Graphic content / Police collect evidence through injured and dead people lying on the ground, at the site of an explosion at a night market in Davao City, in southern island of Mindanao, on late September 2, 2016. At least 10 people died and dozens were injured when an explosion rocked Philippine President Rodrigo Duterte's home city of Davao on September 2, 2016 night, police told AFP. The explosion occurred in a bustling part of the city and close to one of its top hotels that is popular with tourists and business people, city spokeswoman Catherine dela Rey said. / AFP PHOTO / STRSTR/AFP/Getty Images

EDITORS NOTE: Graphic content / Police collect evidence through injured and dead people lying on the ground, at the site of an explosion at a night market in Davao City, in southern island of Mindanao, on late September 2, 2016. At least 10 people died and dozens were injured when an explosion rocked Philippine President Rodrigo Duterte's home city of Davao on September 2, 2016 night, police told AFP. The explosion occurred in a bustling part of the city and close to one of its top hotels that is popular with tourists and business people, city spokeswoman Catherine dela Rey said. / AFP PHOTO / STRSTR/AFP/Getty Images

EDITORS NOTE: Graphic content / Police collect evidence through injured and dead people lying on the ground, at the site of an explosion at a night market in Davao City, in southern island of Mindanao, on late September 2, 2016. At least 10 people died and dozens were injured when an explosion rocked Philippine President Rodrigo Duterte's home city of Davao on September 2, 2016 night, police told AFP. The explosion occurred in a bustling part of the city and close to one of its top hotels that is popular with tourists and business people, city spokeswoman Catherine dela Rey said. / AFP PHOTO / STRSTR/AFP/Getty Images

Police investigators collect evidence through injured and dead people lying on the ground, at the site of an explosion at a night market in Davao City, in southern island of Mindanao, on late September 2, 2016. At least 10 people died and dozens were injured when an explosion rocked Philippine President Rodrigo Duterte's home city of Davao on September 2, 2016 night, police told AFP. The explosion occurred in a bustling part of the city and close to one of its top hotels that is popular with tourists and business people, city spokeswoman Catherine dela Rey said. / AFP PHOTO / MANMAN DEJETOMANMAN DEJETO/AFP/Getty Images

Police investigators collect evidence through injured and dead people lying on the ground, at the site of an explosion at a night market in Davao City, in southern island of Mindanao, on late September 2, 2016. At least 10 people died and dozens were injured when an explosion rocked Philippine President Rodrigo Duterte's home city of Davao on September 2, 2016 night, police told AFP. The explosion occurred in a bustling part of the city and close to one of its top hotels that is popular with tourists and business people, city spokeswoman Catherine dela Rey said. / AFP PHOTO / MANMAN DEJETOMANMAN DEJETO/AFP/Getty Images

Koh Dong-jin, president of Samsung Electronics’ Mobile Communications Business, bows during a news conference in Seoul, South Korea, September 2, 2016. REUTERS/Kim Hong-Ji

Koh Dong-jin, president of Samsung Electronics’ Mobile Communications Business, speaks during a news conference in Seoul, South Korea, September 2, 2016. REUTERS/Kim Hong-Ji