ZURICH (Reuters) - Auditing firm KPMG has stepped down as auditor of FIFA, the global soccer body said on Monday, saying it was welcoming the opportunity to work with a new audit firm.

KPMG confirmed it had resigned, but declined further comment. It said in September it had launched an internal review of its Swiss business over audits of FIFA's financial record keeping.

FIFA is facing serious allegations involving financial transactions under Swiss and U.S. investigations, and President Gianni Infantino has said he has launched a comprehensive financial audit of the organization's finance function.

"The appointment of a new auditor, coupled with the appointments of a new chief financial officer and a new chief compliance officer, are essential steps in this process," FIFA said in its statement.

(Reporting by John Revill; Edited by John Miller and Alison Williams)