Aditi Bhat, 12, Bhuvaneshvar Bhat, 8, and Shravan Hola,7, all natives of Karnataka, had come to Goa along with their parents.
They were on a pilgrimage in Ponda district, known for its temples, when they drowned at the temple tank at Nagueshi village.
"The children had gone for a swim while their parents were offering prayers at the temple. Their bodies were fished out and sent for post-mortem," South Goa district police spokesman told reporters.
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