Sienna Miller broke down in tears yesterday after being hounded and questioned by paparazzi about her affair with Balthazar Getty.

The actress has been portrayed as a homewrecker after embarking on a relationship with the millionaire oil heir, with many blaming her for the breakdown of his marriage to wife Rosetta.

When stopping off at a gas station on Monday to fill up her car, Sienna was interrogated by photographers wanting an exclusive scoop about her new love, reports the Daily Mail.

Clearly agitated, the 26-year old snapped: “Can you leave me alone, I'm trying to get gas and this is really harassment. Please leave me alone.

“Please I'm asking you. I can't live like this, please give me a little bit of respect. I'm just trying to f**king fill up my car.”

After paying for petrol, the tearful star drove to the local police station to ask for escort to protect her from the photographers chasing her.

Do you feel sorry for Sienna? Is she getting what she deserves? Be sure to leave your comments below.