Nokia has denied that Siemens, its partner in the Nokia Siemens Networks (NSN) infrastructure joint venture, is on the hunt for a new CEO. Siemens' supervisory board member Sibylle Wankel last week reportedly said the German company’s financial director Joe Kaeser had been looking for an alternative to current NSN CEO Rajeev Suri. A Nokia spokesman told Reuters that the speculation was “complete rubbish.”