A bomb exploded in a church in the Nepalese capital during Saturday morning mass, killing two people and wounding 15, police said.
The blast at the Church of the Assumption in Katmandu killed a 14-year-old Indian girl and a 30-year-old woman, said police official Prabhakar Pudasini. The girl was identified as a high school student from the Indian town of Betiah.
It was the first such attack on a Christian church in Nepal where most of the population is Hindu or Buddhist. Religious violence is rare.
Officials said an underground Hindu extremist group claimed responsibility for the attack. Home Ministry spokesman Navin Ghimire said the group, the National Defence Army, left a note found at the scene.