Sri Lanka was rocked  by series of eight blasts on Easter Sunday morning (21 April 2019) in locations including churches and hotels across the country, leaving at least 207 people dead and more than 450 injured.
The six explosions in the coordinated bombings targeted churches packed with worshippers who were attending Easter Sunday services. These include St. Anthony's church  at Kochchikade in Colombo, St. Sebastian's Church in Negombo, and Zion Church in the Tamil-dominated city of Batticaloa. At least 67 people died at St Sebastian's church alone.
— simulacra deorum (@digitalfolklore) April 21, 2019 
The bombings also targetted luxury hotels in the capital city, Colombo — the Cinnamon Grand, the Kingsbury, and the Shangri-La, where at least 35 foreigners were killed.
35 foreigners among the victims of the bomb blasts in Sri Lanka.
Among the victims are nationals of; #USA , #Denmark , #China , #Japan , #Pakistan , #Morocco , #India  and #Bangladesh  – National Hospital Spokesperson.#lka  #SriLanka 
— News 1st (@NewsfirstSL) April 21, 2019 
The seventh blast was at a small hotel in the suburb of Dehiwala in capital Colombo.
2 dead in an explosion took place inside a small hotel in Dehiwela pic.twitter.com/wR5wMinueb 
— Azzam Ameen (@AzzamAmeen) April 21, 2019 
The eighth blast was a suicide bomb in the Dematagoda district of Colombo which killed three police officers.
Minister @RWijewardene  addressing the press just now says action will be taken to stop activity of all extremist groups in the country. Social media temporary banned. 12 hour curfew from 6pm. The Dehiwela n Dematagoda blasts seem to be by those in the ring running from the law.
— Harsha de Silva (@HarshadeSilvaMP) April 21, 2019 
No one has yet claimed responsibility for the attacks. However, reports suggest that they were the work of suicide bombers.
The Sri Lankan government has declared  an islandwide curfew from 6 p.m. local time to the next morning. Additionally, social media sites including Facebook and Instagram were temporarily blocked  to prevent the further spread of false news.
Confirmed: Facebook, WhatsApp, Instagram, YouTube, Viber, Snapchat and Messenger blocked in #SriLanka  following series of deadly church and hotel attacks; incident ongoing #EasterSundayAttacksLK  #KeepItOn  ⬇️https://t.co/xp4hSxvFOi  pic.twitter.com/dcQ6COsWKB 
— NetBlocks.org (@netblocks) April 21, 2019 
— Groundviews (@groundviews) April 21, 2019 
However, Twitter was not blocked and is providing some useful information.
— Sanjana Hattotuwa (@sanjanah) April 21, 2019 
Sri Lanka  is a multi-ethnic and multi-religious country. Sinhalese (74.8 percent) constitute the largest ethnic group in the country, followed by Sri Lankan Tamils (11.2 percent) and Sri Lankan Moors (9.2 percent). In terms of religion, Buddhists (most of the Sinhalese ethnic group) comprise 70 percent of the 22 million population followed by Hindus (13 percent), Muslims (10 percent) and Christians (7 percent).
The country suffered a three-decade-long civil war  between government armed forces and separatist Tamil militant group Liberation Tigers of Tamil Eelam  (LTTE) which ended in 2009. The bombings have reminded  citizens of the attacks of those times .
Defence Minister Ruwan Wijewardane vowed  to take all necessary action against any extremist group that is operating in the country. He also echoed the response of the New Zealand government after the Christchurch shooting last March:
State Minister/ Defence @RWijewardene  urges media not to publicise names of today's attackers. He warned other extremist groups could exploit situation & create tension between communities. “Don't give extremists a voice. Don't help to make them martyrs” #EasterSundayAttacksLK 
— dharisha (@tingilye) April 21, 2019 
Cardinal Archbishop of Colombo Malcolm Ranjith urged the people of Sri Lanka not to spread “hearsay” and to “wait patiently and work for peace and harmony”.
PM @RW_UNP  met w ministers n senior military personnel; all measures taken to maintain peace. Security tightened. Please stay calm. Please act responsibly. Please NO politics. We must all act together as #SriLanka  citizens. My condolences to all families who lost loved ones. pic.twitter.com/j6e3qEPgNt 
— Harsha de Silva (@HarshadeSilvaMP) April 21, 2019 
Freelance journalist and educator Kelum Samarasena agreed:
I think Srilanka must take a lesson from New Zealand. Let there be zero free coverage for the heinous terrorist outfit whose ultimate aim would've been the publicity. Focus on victims and the people uniting . Let them be the NEWS…
— kelum samarasena (@kelums) April 21, 2019 
Prime Minister Ranil Wickremesinghe urged  all Sri Lankans to remain calm and united.
People flocked to the hospital to donate blood:
Respect 🙏 Sri Lankans🇱🇰!
Massive Kindness ,We All Can Proud !
Blood donors are flooding , Large number of people donating bloods in hospitals following Government requests #LKA  #SriLanka  #EasterSunday  #EasterSundayAttacksLK  #EasterAttackSL  #Colombo  pic.twitter.com/15pegwOnlV 
— Sri Lanka Tweet 🇱🇰 (@SriLankaTweet) April 21, 2019 
Just returned from Batticaloa hospital where I witnessed incredible sorrow but also people of all faiths and ethnicities working together to respond to the victims of today’s church bombing. Several referenced their own personal and collective histories of loss as they worked.
— ittappalaG adnanA (@ittappalaga) April 21, 2019 
International leaders including Pope Francis condemned  the violence.
— Inshaf Caffoor (@inshafcaffoor) April 21, 2019