Rihanna's Hollywood home was monitored by a hovering helicopter after an alarm was set off at her mansion.



The 'Wild Thoughts' singer's pad was kept under surveillance by the Los Angeles Police Department whilst they determined what triggered the security device to sound off.



According to TMZ, the 30-year-old singer was not at the property when the disturbance took place, and fortunately it turned out to just be a false alarm.



Despite this, cops remained outside the property for extra precaution after an intruder allegedly spent the night in Rihanna's home in May.