Sienna Miller is being pursued by so many paparazzi photographers that she’s said to fear she’ll end up dead – like Princess Diana.

The actress, who is in a controversial relationship with married oil heir Balthazar Getty, reportedly plans to step up security.

‘She says life’s a living hell and without protection she might meet the same end as Di,’ a source tells the News Of The World.

Princess Diana died in 1997 after the car she was travelling in crashed while being chased by paparazzi.