Inter Milan president Massimo Moratti has accused Serie A referees of making a number of "errors" against his side.

The president was speaking after the Blue and Blacks slumped to a 2-1 defeat away at Catania on Saturday, a game which saw Inter concede their fourth penalty of the season.

"Three of the four penalties given against us have been errors from the referees," Moratti told reporters. "Is the bonus for teams playing against Inter finished now?"

Inter, who recently appointed former Chelsea manager Claudio Ranieri as their new coach, are 17th in the Italian top flight after six matches.