Forty suspects, including the driver of a van allegedly used by the suicide bombers, were arrested in connection with the multiple attacks.
Sri Lanka's military said the gunfire and later suicide blasts killed 15 people, including six children.
In the following days, the country unleashed a sweeping crackdown on potential suspects in the attacks, arresting over 70 people all over the country and facing off with militants in anti-terrorist raids.
Sri Lankan authorities are also hunting for around 140 followers of the jihadist group Islamic State, which has said it was involved in the bombings, but has not given details.
National Thawheed Jammath (NTJ) leader Zahran Hashim, the mastermind behind the attacks, was killed inside the Shangri La hotel were he detonated himself.
Their political rivalry and government dysfunction are blamed for a failure to act upon near-specific information received from foreign intelligence agencies that preceded the bombings targeting three churches and three luxury hotels.
"What happened last Sunday is a great tragedy, an insult to humanity", he added.
On Saturday, President Maithripala Sirisena formally outlawed two Islamist extremist groups suspected of carrying out the Easter attacks. "If they (the authorities) are honest, they must have a thorough investigation", he said.
Suitcase with human remains retrieved from Cypriot lake
On Thursday, the suspect told them while under questioning about four more victims and gave directions to a military firing range. Mr Shailos said a coroner who carried out a preliminary examination at the scene determined the body was that of an adult female.
Fortnite Black Widow Skin Now Available in Item Shop
One that players can get without spending any V-Bucks is a Quinjet Glider that's earned by competing event challenges. It costs 1,500 V-Bucks and comes in two variants: one with red hair, and one with blonde.
United Kingdom fracking tsar quits after six months
Rebecca Newsom, Greenpeace UK head of politics, said the UK fracking industry had been "stuck in a time warp" for almost a decade. In her resignation letter, Ms Engel wrote that the fracking industry is "in danger of withering on the vine".
"We pray that in this country there will be peace and co-existence and understanding each other without division", he said.
The government, crippled from a long political crisis between the president and prime minister past year, promised swift action to capture militants still at large.
Many lit candles and placed them in a makeshift memorial for the victims. "Some have died", Wickremesinghe said in a statement. Police said Hashim's young daughter also survived.
Police said they had arrested 48 suspects over the last 24 hours as checkpoints mounted by all of Sri Lanka's security forces sprung up across this country of 21 million people.
IS, which claimed responsibility for the Easter bombings, said the three men who blew themselves up at Kalmunai were its members. She said Zahran's extremist views had opened a rift between her and her brother.
Presidential spokesman Dharmasri Ekanayake said the ban, issued by decree under emergency powers, would allow the government to confiscate any property belonging to the two organisations. Most Sri Lankan Muslims practice a liberal form of the religion, with only a small percentage of women wearing a full face veil known as niqab.
With the burqa ban, Sri Lanka joins the group of nations in Asia, Africa, and Europe that have done so in the interest of preventing terrorists from using the burqa to evade police or hide explosives. The raid took place in the eastern town of Kattankudy, just a day after President Sirisena outlawed NTJ and another group, Jamathei Millathu Ibrahim, under new emergency laws.
As a safeguard, such orders, to be issued case-by-case, could be challenged and appealed through the city's vaunted legal system. Government officials say the changes are needed to plug long-standing legal loopholes.
Pour la première fois cette année, la France a organisé une journée de commémoration du génocide arménien le 24 avril. Et dans africanews, il précise avoir des archives et des documents qui le prouvent très clairement.
News, adding that "any official visits or tours undertaken by any members of the royal family are announced in the usual way". Meghan is now nesting and isn't expected to be seen again until after the baby has been born.
Rainfall totals between a quarter of an inch to a half an inch expected across the region, with higher amounts farther south. Winds have been breezy as well, coming in out of the southeast at 10 to 20 miles per hour with a few gusts to around 30mph.
Commander of Guantanamo Bay prison is fired
Add Guantanamo Bay as an interest to stay up to date on the latest Guantanamo Bay news, video, and analysis from ABC News. The commander of the joint task force that operates the detention camps at Guantanamo Bay, Cuba, has been fired, U.S.
IPL: Russell muscles KKR out of losses
Hardik Pandya's 91 off 34 may have ended up in a losing cause, but Smart Stats says it was the best innings of the match. The Australian hit a boundary in every over after that before notching up his fourth fifty of the season in 28 balls.
Minjee Lee wins LA Open for 5th LPGA Tour title
The four-time LPGA Tour victor tied for third last week in Hawaii for her third top-three finish of the season. Quebec City's Anne-Catherine Tanguay (73) and Calgary's Jaclyn Lee (76) were tied for 41st at 1 over.
"Gilets jaunes": la mobilisation marque le pas avant le 1er Mai
Devant le siège de la chaîne privée TF1, Julien, un boulanger de 29 ans, protestait contre le traitement médiatique du mouvement . A Paris, le périmètre prohibé comprend les Champs-Elysées, l'Elysée, les abords de l'Assemblée nationale et de Notre-Dame.