Singer Miley Cyrus' fans have sent death threats to her boyfriend Patrick Schwarzenegger after photographs emerged of him getting cosy with another woman.

The `Wrecking Ball` hitmaker's most devoted followers on Twitter appear to have taken the recent photographs rather badly, sending vitriolic messages and threats over the micro-blogging site, reports dailymail.co.uk.

As per reports, some of the messages from her fans -- collectively known as the Smilers -- bordered on the dangerous and extreme.

`You better run for your life when you come to LA (Los Angeles),` one angered fan wrote.

Another added: `I hope your pizza place burns down,` while a separate troll posed the question: `Who's gonna kill Patrick for us?`

Another sought humour in the circumstance, joking that they would `kill Patrick` if he went astray on his girlfriend of five months.

The news of the multiple death threats come just after it was revealed that 22-year-old Cyrus actually knows the girl with whom her boyfriend was getting cosy while in Cabo San Lucas, Mexico during the weekend.