London : Ferrari is considering an appeal against the decision to clear McLaren in Formula One's spying row.
"We are reflecting on what to do after the incomprehensible and grave decision made in Paris," Ferrari boss Jean Todt told Italian news agency Ansa.
The FIA ruled Thursday that the title race was unaffected by McLaren's possession of secret Ferrari documents.
"It's difficult to understand that one who is deemed to be guilty goes unpunished," said Todt.
The row erupted after after a 780-page technical dossier was found at the home of McLaren chief designer Mike Coughlan, who has since been suspended by the team.
McLaren, who insisted that they did not use or benefit from the information in Coughlan's possession, still face a championship ban if in the future they are seen to have gained any advantage from the data.
Todt's comments were echoed by Ferrari president Luca Montezemolo.
"I want to say to the fans from all over the world who have been contacting Ferrari, offended by the decision taken in Paris yesterday, that they should remain calm because this story will not end here," he said.