According to sources, the explosion occurred in a rickshaw as a man was exiting the vehicle.
Rescue sources said the injured have been rushed to Nishtar Hospital for treatment.
The Capital Police Officer (CPO) said the bomb disposal squad was trying to ascertain the nature of the blast.
The 2018 Boao Forum for Asia (BFA) annual conference is scheduled for April 8 to 11 in Boao, Hainan Province. The forum will be themed "An Open and Innovative Asia for a World of Greater Prosperity."
— The Daily Mail - People's Daily