The Mysuru forest mobile squad personnel arrested four persons who were illegally transporting Ambergris in Kushalnagar.
About 8.250 kg of Ambergris, along with a car, has been seized. The arrested are K M Ibrahim from Hodavada, B E Rafeeq from 7th Hosakote, M A Taheer from 7th Hosakote and K M George from Iritty in Kannur district of Kerala.
The prime accused, Riyaz, from Koinadu, is still at large.
Ambergris which is found at seashores has a large demand in the international market.