It’s Tuesday night in Sri Lanka.

It’s Tuesday night in Sri Lanka.

It’s Tuesday night in Sri Lanka.

Sri Lanka woke up Tuesday to a day of mourning following the deadly hotel and church attacks on Easter Sunday.

It’s now almost 9 p.m. in the country. Here’s what we know about the attacks, the suspects and the investigation:

  • What happened: At least six suicide bombers were involved in six attacks — three at luxury hotels and three at churches celebrating Easter — across Sri Lanka on Sunday. Combined, the attacks killed 310 people and injured at least 500 more.
  • Who is behind the attacks? While ISIS claimed responsibility, there is no direct evidence the group coordinated the bombings. Authorities have arrested 40 people in connection to the attacks.
  • The threat may not be over: Prime Minister Ranil Wickremesinghe said today that there are “still people on the run with explosives.” He said he doesn’t know how many people.
  • What the government knew: The Sri Lankan government admitted on Monday that it failed to act on multiple warnings before the attacks. A government spokesman said some of the warnings came from from foreign intelligence services.