Attempted burglary on RiRi's $12m LA pad gets thwarted by security alarm

Rihanna's 12 million dollars mansion in Pacific Palisades was reportedly targeted by burglars last weekend while the pop star was away in Australia for her 'Diamonds World Tour.'

Law enforcement sources told TMZ.com that the intruders drove up the private road leading to the singer's house, walked to the backyard and threw a chair through a sliding glass door.

However, they were scared off apparently by the alarm, as they left without entering into the house.