Claudio Ranieri's Inter controlled the game at the San Siro from the outset and crushed Parma thanks to Diego Milito's brace and goals from Thiago Motta, Giampaolo Pazzini and substitute Marco Faraoni.

Argentine striker Milito opened the scoring in the 13th minute with a clever flick from close-range after Ricardo Alvarez's cross from the left.

It was 2-0 just five minutes later when Motta's powerful drive from the edge of the area left Antonio Mirante with no chance.

The contest was all but over moments before the break as Maicon's cross found Milito, who headed into the top corner.

Milito continued to impress as his through ball put Pazzini through, and the Italian striker chipped the advancing Mirante to make it 4-0 in the 56th minute.

Faraoni, who replaced Milito, completed the rout when he volleyed in from 20 yards for his first Serie A goal.

Earlier on Saturday, title contenders Lazio crashed to a shock 4-0 loss at Siena.

Mattia Destro and Emanuele Calaio netted braces for the hosts, who moved six points clear of the relegation zone with the victory over Edy Reja's fourth-placed side.

Lazio had goalkeeper Albano Bizzarri sent off just before the interval after a bizarre penalty.

On loan from Genoa, Destro hit a neat finish into the bottom corner to put Siena ahead in the 11th minute.

They doubled their advantage just after the half-hour when Calaio stepped up to score from the penalty spot after Lithuanian defender Marius Stankevicius brought down Franco Brienza with a clumsy challenge.

Siena were awarded their second spot-kick in strange fashion in first-half stoppage time.

Destro darted into the area before being brought down by Bizzarri, only for the striker to rush to his feet and tap into an empty net.

But the goal did not stand and Bizzarri was sent off before Calaio made it 3-0 when he beat substitute goalkeeper Juan Pablo Carrizo.

Destro would complete a deserved double on 81 minutes, nodding home Cristiano Del Grosso's cross to cap off a fine performance.