Formula One championship leaders McLaren reassured Ferrari on Wednesday that they had not used any of the Italian team's data leaked to one of their senior technical employees.

"McLaren has completed a thorough investigation and can confirm that no Ferrari intellectual property has been passed to any other members of the team or incorporated into its cars," the British-based team said in a statement.

McLaren also invited the sport's governing body, the International Automobile Federation, to conduct a full review of the cars "to satisfy itself that the team has not benefited from any intellectual property of another competitor."