Image copyright Getty Images Image caption A joint funeral service was held for Carrie Fisher and her mother Debbie Reynolds in LA

Carrie Fisher has been laid to rest alongside her mother Debbie Reynolds at a private service where her ashes were carried in an urn in the form of an outsize Prozac pill.

The US actress, best known for her role as Princess Leia in the Star Wars films, was frequently open about her experience of mental health issues.

"I felt it was where she would want to be," her brother Todd Fisher said.

Fisher, 60, and Reynolds, 84, died within a day of each other last month.

Media playback is unsupported on your device Media caption Carrie Fisher's brother Todd explains why a giant Prozac pill was used as an urn for her ashes

Following the joint funeral service at Forest Lawn Memorial Park in Hollywood Hills, Los Angeles, Todd Fisher said the giant pill in the shape of the anti-depressant drug was chosen as the urn for his sister's ashes because it was one of Carrie's "favourite possessions".

"She loved it, and it was in her house, and Billie [Carrie Fisher's daughter] and I felt it was where she would want to be," he said.

He added that Fisher and her mother were now "together, and they will be together here and in heaven".

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Apart from Fisher's cremation and the family's choice of urn, no details were revealed about the private funeral ceremony.

Image copyright SPL Image caption The anti-depressant drug Prozac was introduced in the US in 1988

Prozac (fluoxetine), a potent anti-depressant drug, was introduced in the US in 1988 and the UK the following year. Since then it has helped define how people think about mental illness.

How Prozac entered the lexicon

Stars pay tribute to 'Hollywood royalty'

Image copyright AP Image caption Meryl Streep, Jamie Lee Curtis and Gwyneth Paltrow attended the memorial

On Thursday, a joint memorial ceremony was held at Fisher's estate in Coldwater Canyon, Los Angeles.

Among those in attendance were fellow actors Meryl Streep, Gwyneth Paltrow and Meg Ryan. Star Wars creator George Lucas and British actors Stephen Fry and Eric Idle were also guests at the ceremony.

Other guests included Jamie Lee Curtis, who stars with Fisher's daughter Billie Lourd on TV series Scream Queens, singer Courtney Love, and actors Ed Begley Jr, Candice Bergen and Ellen Barkin.

Fisher died three days after suffering a cardiac arrest on a flight from London to Los Angeles in December.

Reynolds, who starred opposite Gene Kelly in the 1952 musical Singin' in the Rain, died a day later after she was rushed to hospital with a suspected stroke.

Her son Todd said the stress of his sister's death had been too much for Reynolds and in her last words, she had said she wanted to be with Carrie.