In Sri-Lanka, President Maithripala Sirisena says terrorists who carried out the Easter blasts have a link to drug trade.
Speaking at a press conference in Colombo, Sirisena said attacks may have been carried out sooner than planned due to his anti-drug campaign.
Meanwhile, State Intelligence Services have urged people to pray at home and not attend mosques or churches warning of possible car bomb attacks, amid fears of retaliatory violence for Easter Sunday bombings.