Zambians started voting on Thursday in a showdown between President Edgar Lungu and main opposition rival Hakainde Hichilema that looks too tight to call and comes amid mounting debt and a flagging economy.
Polling opened at 6 a.m. (0400 GMT) with long queues seen at voting booths in the capital Lusaka, which could point to a huge turnout in Africa's No. 2 copper producer.