Prime Minister Stephen Harper is keeping his distance from the latest revelations in the Senate expenses scandal.

Harper was asked about the issue on Saturday as he visited Ukraine, but he said little more other than the Senate is an independent body that is dealing with the problem itself.

An explosive audit of expenses that will be made public next week says there is little oversight and accountability in the upper chamber.

And auditor-general Michael Ferguson's report — sections of which were viewed by The Canadian Press — urges "transformative change" to fix systemic problems.

A total of 21 senators have been found to have made questionable expense claims and the RCMP is being asked to look at the expenses of another nine senators.

Harper says he views any abuse of taxpayer dollars by Parliamentarians to be unacceptable, but suggested the matter is out of his hands.