Philippines President Rodrigo Duterte attends the ASEAN Summit in Vientiane, Laos September 7, 2016. REUTERS/Soe Zeya Tun

Philippines President Rodrigo Duterte attends the ASEAN Summit in Vientiane, Laos September 7, 2016. REUTERS/Soe Zeya Tun

Philippines President Rodrigo Duterte attends the ASEAN Summit in Vientiane, Laos September 7, 2016. REUTERS/Soe Zeya Tun

September 9, 2016 11:21 AM (UTC+8)