The Sri Lankan government has declared a curfew with immediate effect, and shut down all major social media and messaging services.
"A curfew will be imposed until things settle down," junior defence minister Ruwan Wijewardene told reporters in Colombo.
Government officials said Facebook and WhatsApp have been blocked to prevent misinformation and rumours.
Nearly 140 people have been killed and more than 400 people wounded after eight bomb blasts ripped through churches and hotels in the island nation on Sunday.
Kuwait International Airport suffers 'significant damage' after drone attacks
Israeli strike kills three Lebanese journalists, reports say
Russian drones kill four in Ukraine, damage key infrastructure
Manila, Beijing resume talks on South China Sea, energy security
Yemen's Houthis confirm launching attack on Israel
Nepal's former PM arrested over Gen Z protests deaths
UN establishes task force to address Hormuz navigation challenges
Worker injured in drone attack on Oman's Salalah port, crane damaged
