Philippines President Rodrigo Duterte is interviewed by reporters after visiting the explosion site at a market in Davao City, Philippines September 3, 2016. REUTERS/Lean Daval Jr

Philippines President Rodrigo Duterte is interviewed by reporters after visiting the explosion site at a market in Davao City, Philippines September 3, 2016. REUTERS/Lean Daval Jr

Philippines President Rodrigo Duterte is interviewed by reporters after visiting the explosion site at a market in Davao City, Philippines September 3, 2016. REUTERS/Lean Daval Jr

September 3, 2016 2:34 AM (UTC+8)