The Ambergis stock worth Rs 26 crore, recently seized by Maharashtra's Thane forest division, was brought from Karnataka and a special team would be sent to the neighbouring state for further probe into the case, an official said on Tuesday.

The Thane forest division seized 27 kg of Ambergis, or whale vomit, during raids over the last few days and arrested five people from Mumbai in this connection, Deputy Conservator of Forest (Thane) Gajendra Hire said.