A Black Mirror star told police she feared she was being stalked by a female neighbour, before officials found a tracking device under her car.

Gugu Mbatha-Raw, 35, was being tracked for two months around Los Angeles and was followed to hotels, restaurants and spin classes, according to a search warrant.

The actress, from Oxfordshire, told police that the stalker has been calling her and her boyfriend and then hanging up.

Black Mirror with Gugu Mbatha-Raw (left) as Kelly and Mackenzie Davis as Yorkie (right)

The warrant, obtained by TMZ, allegedly states that the woman stalking the former Doctor Who star lives on her street and would show up at her house.

The stalker also took pictures of the actress, who has been awarded an MBE at Buckingham Palace for her services to drama.

Mbatha-Raw then reported the stalker to the LAPD after the two-month ordeal and they found a GPS tracker underneath her car, according to TMZ.

The 35-year-old is said to be 'living in constant fear' and thinks her pursuer could turn up at her home at any point and become violent.

Gugu Mbatha-Raw attends The Hollywood Reporter's Power 100 Women In Entertainment

Gugu Mbatha-Raw received an MBE Investitures, Buckingham Palace in December last year

The LAPD are investigating the case, according to TMZ.

The 35-year-old appeared in the San Junipero episode of Black Mirror, famous for being the only show in the series with a happy ending. It won two Emmys.

The English actress played Kelly Booth in the episode that detailed a love story between two females that engage in 'nostalgia therapy' where their real life bodies lay in one world, and their old selves are cast to another.

Mbatha-Raw started her acting career in 2005 with a small role on Holby City.

She grew up in Witney, Oxfordshire after being born in Oxford. She's the daughter of Patrick Mbatha, a South African doctor, and Anne Raw, an English nurse.

Last year, the actress starred alongside Oprah Winfrey and Reese Witherspoon in the American science fantasy adventure film A Wrinkle In Time.

In a recent interview, Mbatha-Raw spoke about being friends with singer Prince after they met at an awards ceremony and said she was was shocked when she learned of his death.