Syrian authorities arrested suspects linked to Islamic State after deadly church attack in Damascus that killed 25 people and wounded 63, vowing to bring all perpetrators to justice.

At least 20 people have been killed and 52 more are injured in a “terrorist attack” on a church in the Syrian capital on Sunday, according to the country’s health ministry.

A suicide bomber has killed at least 25 people and injured 63 of the 350 congregants after opening fire and then self-detonating at a Greek Orthodox church in Syria on Sunday.