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.
Meloni defends government after Italian culture minister quits over scandal
Alarm in Pakistan as first polio case reported in capital in 16 years
US-British intelligence call for a ceasefire in Gaza
Japan unveils system to predict ash spread from Mt. Fuji eruptions
Super Typhoon Yagi leaves at least 2 dead in China's Hainan
