Lupita Nyongo's $150,000 Oscars dress has been stolen from her Hollywood hotel room, according to TMZ.
The 31-year-old wore the custom Calvin Klein gown created by Francisco Costa that featured 6,000 pearls to the 87th Academy Awards ceremony on Sunday, Daily Mail reported.
It is understood the show-stopping outfit was taken out of her room at The London hotel in West Hollywood.
She told police it went missing between 8am and 9pm on Tuesday while she was out, TMZ reports.
Authorities are now searching CCTV footage for answers.
A spokesperson from the LA Sheriff's Department told Us Magazine: 'I can confirm a dress was stolen from the London Hotel that belonged to the actress Lupita Nyong'o".
'We believe it was taken sometime during the day yesterday. We are looking at every scenario; when the cleaners go to clean the rooms they do it with the door open so that's a possibility.'
The London also confirmed the incident: 'This is a terribly unfortunate situation, and we are working with law enforcement on their investigation.'
On Wednesday the actress shared a timelapse video of her pre-Oscars prep which shows her with her style team in her hotel room getting her glammed up before the big event.
And the morning after the Oscars, Lupita shared a snap of her beautiful accessories she'd worn for the the night and captioned: 'That was cool! #Oscars 2015 #DiamondsAndPearls'
Laid out on top of her frock were some stunning Chopard jewels and satin Nicholas Kirkwood heels alongside a silver box clutch.
Lupita returned to the Oscars after winning the Academy Award for Best Supporting Actress last year for her work in 12 Years A Slave.
'This year the pressure's off,' Lupita told E! host Ryan Seacrest during the E! red carpet show. She added: I can just dress up and enjoy the show.'
The actress was recently attached to the film Queen Of Katwe based on the true story of Ugandan chess prodigy Phiona Mutesi.