Fifa's ethics committee is investigating both Michel Platini and Sepp Blatter following the Swiss attorney general's decision to launch criminal proceedings against the Fifa president.

It is understood the ethics committee is looking into the circumstances of a 2million Swiss franc payment that Platini received in 2011 for work said to carried out more than nine years previously.

Swiss prosecutors opened criminal proceedings against Blatter yesterday and Platini was interviewed as a witness by officers from the attorney general's office. Both strenuously deny any wrongdoing.

Fifa presidential candidate Prince Ali of Jordan, Platini's rival for the forthcoming presidential election, said the world governing body has been "shaken to its very core" by the recent scandals.