Thailand Election Commission's workers holds banners during an event to promote voting at the August 7 referendum on a new constitution, in Bangkok, Thailand, August 4, 2016. REUTERS/Chaiwat Subprasom

Thailand Election Commission’s workers holds banners during an event to promote voting at the August 7 referendum on a new constitution, in Bangkok, Thailand, August 4, 2016. REUTERS/Chaiwat Subprasom

Thailand Election Commission's workers holds banners during an event to promote voting at the August 7 referendum on a new constitution, in Bangkok, Thailand, August 4, 2016. REUTERS/Chaiwat Subprasom

August 4, 2016 2:44 AM (UTC+8)