The first images of one of the suspected Sri Lankan suicide bombers have been released.
CCTV shows a man carrying a backpack and walking calmly into St Sebastian’s Church in Colombo as worshippers gathered to celebrate Easter Sunday.
At least 290 people were killed when coordinated blasts went off in the country’s capital.
Prime Minister Scott Morrison has confirmed two Australians were among those killed.
Manik Suriaaratchi and her 10-year-old daughter Alexendria had returned to Sri Lanka several years ago to look after a family member and were killed in Sunday’s attacks.