Diesel spill at Co Down beach triggers public clean-up bid to save wildlife and protect pets Sea Shepherd NI said: "It's utterly irresponsible of any agency to say leave it be, let it wash into the sea when we know how harmful these contaminants are - we had to do something" Updated The video will auto-play soon8Cancel Play now Never miss a thing from Belfast and beyond - sign up for FREE newsletter direct to your inboxInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice.