The Orange is the New Black star was at home in Los Angeles on Wednesday night (22Jul15) when she told fans via of the drama unfolding outside.

She had spotted a gun-wielding mystery man on the property as a police helicopter hovered above trying to locate him, but the scary incident eventually ended when officers apprehended a suspect nearby.

Documenting the drama on Twitter, Rose wrote, "There is a gunman in my back yard. This is petrifying. Helicopters, police, dogs... And a crazy person."

She later added, "Man arrested. Wow. Crazy. And now I won't be watching horror films before bed anymore."

The messages have since been deleted.