Kathmandu, Feb. 7 -- Local authorities in Sunsari have interrogated 17 US nationals and one Indian citizen, and sent their documents to the Immigration Department for further investigation.

The foreigners, who visited Nepal on tourist visas, are accused of posing as social workers while covertly attempting to convert people to Christianity.

The individuals were briefly detained after they were allegedly found carrying out religious activities while volunteering to construct a building for the Prerana Kalyankari Society in ward 5 of Dharan Sub-metropolitan City, Sunsari.

Dharmendra Kumar Mishra, chief district officer of Sunsari, said that the authorities interrogated the foreigners after they were found to be involved in activities oth...