Horse manure has been dumped illegally close to the shore of a Highland firth, the Scottish Environment Protection Agency (Sepa) has said.
A trailer load of manure and other waste was found at the Cromarty Firth.
Sepa said it was alerted to the waste following a complaint a member of the public made to Highland Council.
The agency said horse manure had to be disposed of in a place where it could not pollute watercourses. Usually it is used as an agricultural fertiliser.