It wasn’t immediately clear who would be replacing them, but President Maithripala Sirisena said during a televised speech Tuesday that he planned to change the head of the defense forces within 24 hours.
“Their thinking is that Islam can be the only religion in this country,” Ruwan Wijewardene told reporters. “They are quite well-educated people,” he said, adding that at least one had a law degree and some may have studied in the UK and Australia.
Leaders have vowed to overhaul the country’s security apparatus after acknowledging that some intelligence units were aware of possible attacks before the Easter bombings.
U.S. Ambassador Alaina Teplitz told reporters that “clearly there was some failure in the system,” but said the U.S. had no prior knowledge of a threat before the attacks, the worst violence in the South Asian island nation since its civil war ended a decade ago.
Teplitz called that breakdown in communication “incredibly tragic.”
Government statements about the attacks have been confused and sometimes contradictory, with police spokesman Ruwan Gunasekara telling reporters Wednesday that there were nine suicide bombers—two more than officials said one day earlier.
One of the additional suicide bombers was the wife of another bomber, Gunasekara said. The woman, two children and three policemen died in an explosion as authorities closed in on her late Sunday, hours after attacks were launched against three churches and three hotels. The ninth suicide bomber has not been identified, though two more suspects were killed in a later explosion on the outskirts of Colombo.
Gunasekara said 60 people have been arrested so far. A team of FBI agents and U.S. military officials were helping in the investigation, Teplitz said.
Officials say all of the main suicide bombers were Sri Lankan.
“We are conducting investigations at the moment to see if there is any direct link to any international organizations,” Wijewardene said.
The group, which has lost all the territory it once held in Iraq and Syria, has made a series of unsupported claims of responsibility for various attacks around the world.
Sri Lankan authorities had earlier blamed a local extremist group, National Towheed Jamaat, whose leader, alternately named Mohammed Zahran or Zahran Hashmi, became known to Muslim leaders three years ago for his incendiary online speeches. On Wednesday, Wijewardene said the attackers had broken away from National Towheed Jamaat and another group, which he identified only as “JMI.”
Teplitz declined to discuss whether U.S. officials knew about National Towheed Jamaat or its leader before the attack. “If we had heard something, we would have tried to do something about this,” Teplitz said.
The country has been on heightened alert since the attacks, with police setting off a series of controlled explosions of suspicious objects. No more bombs were found Wednesday.
On Tuesday, in an address to Parliament, Wijewardene said “weakness” within Sri Lanka’s security system had led to the failure to prevent the bombings.
“By now it has been established that the intelligence units were aware of this attack and a group of responsible people were informed about the impending attack,” Wijewardene said. “However, this information has been circulated among only a few officials.”
In a live address to the nation late Tuesday, President Maithripala Sirisena said he also was kept in the dark on the intelligence about the planned attacks and vowed to “take stern action” against officials who failed to share the information. He also pledged “a complete restructuring” of the security forces.
An Australian white supremacist was arrested in the Christchurch shootings.