TOPSHOT - This picture taken on February 13, 2019, shows shoes and a picture of Nigeria's President Muhammadu Buhari lying the ground in front of the main entrance of the Adokiye Amiesimaka Stadium where fifteen people were killed on February 12, 2019 in a stampede during an election campaign rally held by Nigerian President in Port Harcourt, Southern Nigeria. - The deaths are the latest on the campaign trail before February 16 election, at which Buhari is seeking a second, four-year term of office. (Photo by Yasuyoshi CHIBA / AFP)