A civil defence member carries a dead child in a site hit by what activists said were airstrikes carried out by the Russian air force in the rebel-controlled area of Maaret al-Numan town in Idlib province, Syria. At least 70 people died in what activists said where four vacuum bombs dropped by the Russian air force, January 2016. REUTERS/Khalil Ashawi

Residents and civil defense members look for survivors at a damaged site after what activists said was a barrel bomb dropped by forces loyal to Syria's President Bashar al-Assad in the Al-Shaar neighborhood of Aleppo, Syria. REUTERS/Abdalrhman Ismail

Civil defence members rescue a girl from under the rubble after airstrikes by pro-Syrian government forces in the rebel held al-Qaterji neighbourhood of Aleppo. REUTERS/Abdalrhman Ismail

Members of the civil defense rescue children after what activists said was an air strike by forces loyal to Syria's President Bashar al-Assad in al-Shaar neighborhood of Aleppo. REUTERS/Sultan Kitaz

The logo of Bayer AG is pictured at the Bayer Healthcare subgroup production plant in Wuppertal, Germany February 24, 2014. REUTERS/Ina Fassbender/File Photo

Ousted deposed President Jean Bertrand Aristide sits after he fainted during a rally of presidential candidate Maryse Narcisse in Cap Haitien, Haiti, September 16, 2016. REUTERS/Andres Martinez Casares

Ousted deposed President Jean Bertrand Aristide is carried off stage after he fainted during a rally of presidential candidate Maryse Narcisse in Cap Haitien, Haiti, September 16, 2016. REUTERS/Andres Martinez Casares

Presidential candidate Maryse Narcisse assists ousted deposed President Jean Bertrand Aristide after he fainted during a rally in Cap Haitien, Haiti, September 16, 2016. REUTERS/Andres Martinez Casares