Sri Lankan authorities failed to arrest the terrorist who led the Easter Sunday attacks that killed 258 people despite mounting evidence against him, the country's top intelligence official said Wednesday.

Sri Lanka failed to arrest Easter bomber despite warnings

The Sri Lankan Parliament has unanimously approved the formation of a select committee to look into the factors that led to the Easter Sunday bombings and come up with possible measures to avoid such attacks in future, according to a media report.

Sri Lankan Parliament approves committee to investigate Easter bombings

Sri Lankan police arrested 23 people on Tuesday in connection with a spate of attacks on homes and shops, in what's believed to be a reprisal for the Easter bombings that killed more than 250 people.

Sri Lankan police make arrests in connection to violence after Easter attack

Sri Lankan police on Sunday imposed curfew with immediate effect in the country's western coastal town of Chilaw after a mosque and few shops owned by Muslims were attacked by a mob, authorities said.

Sri Lanka imposes curfew in western coastal town after communal clashes

The Sri Lankan government on Friday ordered mosques to clamp down on extremists and to submit copies of sermons in new fallout from the Easter suicide bombings that left 258 dead.

Sri Lanka slaps controls on mosques after jihad attacks

A Sri Lankan court has ordered a DNA test before May 15 to verify the death of Mohamed Cassim Zahran, the ring leader of the local Islamist extremist group NTJ which the government blamed carried out the devastating Easter Sunday bombings killing over 250 people.

Sri Lankan court orders DNA test to verify death of Easter bombings mastermind

The death toll from the Easter suicide bomb attacks in Sri Lanka has risen to 257, authorities said Thursday. They warned that the final number of dead from the April 21 attacks on three churches and three Colombo hotels would rise further.

Sri Lanka attacks death toll rises to 257

Sri Lanka has released photographs of six suspects, including three women, wanted for their involvement in the deadly Easter attacks that killed nearly 250 people.

Sri Lanka releases photos of suspects of church, hotel bombings that killed nearly 250 

Tens of thousands gathered in Australia and New Zealand at Anzac Day memorials on Thursday amid heightened security following the shooting massacre at Christchurch mosques and deadly suicide bombings of churches and hotels in Sri Lanka.

Thousands gather for Anzac Day in Australia, New Zealand amid heightened security

Sri Lankan President Maithripala Sirisena will be announcing a nationwide emergency from midnight on Monday following Easter Day blasts. The development comes soon after the Sri Lankan authorities lifted a curfew in the country on Monday and another night-time curfew was imposed.

Sri Lanka serial blasts: President Sirisena to announce nationwide emergency from midnight