Immigration Minister Scott Morrison has accused Labor of undermining ''the honour'' of Defence personnel by calling for an independent inquiry into claims asylum seekers were deliberately burnt by navy personnel.

Mr Morrison also denied a Fairfax Media report that Customs will make further inquiries into claims asylum seekers had their hands held against hot pipes. He said ''a hysterical chorus'' calling for an inquiry into the matter would only ''legitimise these false claims''. ''To consider this matter further without any substantiation to the claims put forward, other than repetition, would simply give credibility to something that has none,'' he said.

Scott Morrison. Credit:Andrew Meares

The Australian Customs and Border Protection Service issued a statement on Saturday saying no new inquiry or investigation was under way and that the abuse claims were ''assessed at the time they were first made and found to be without foundation''.

''No such evidence has been presented which would warrant further action at this time,'' it said.