Kate Beckinsale Shares Hospital Bed Selfie 9 Days After First Revealing Treatment

Kate Beckinsale is sharing another photo from her hospital bed.

On Tuesday, the actress, 50, posted a new selfie on her Instagram Story showing her wearing blue pajamas in bed while resting her head on a pillow.

Beckinsale didn't add a caption to the image, which follows her initial post about her hospital stay nine days ago. She hasn't yet revealed why she was admitted. Beckinsale's rep also declined to comment when contacted by PEOPLE following her announcement.

While being treated in the hospital, the Underworld star has had visits from her beloved cat Willow, and Pomeranian Myf.

Last Wednesday, Beckinsale shared an adorable snap with Myf which showed her holding the pup, who looked up at the camera, while she lay on the bed.

The actress captioned the post, "Visitor," just like she did last Tuesday after getting a visit from Willow. In last Tuesday's pic, Beckinsale wore a pink sweater while snuggling her fluffy feline.

Beckinsale has been sharing updates from the hospital since marking U.K. Mother's Day and her mom Judy's belated birthday on March 11 with a heartfelt post.

The actress first sparked concern when she shared two teary-eyed photos of herself on Instagram among a carousel of snaps and videos. She mentioned being "sick" in the caption but didn't reveal any further information.

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“Happy birthday and U.K. Mother’s Day this last week to my incredible mother,” she captioned the post last week. “Thank you to those that love us and support us when it’s s--- and try to make sure there are some bits that aren’t. And for looking after our dogs when we can’t, and lead us to remember happy things when we can’t. And turn up when we are sick and sit with us . . And send balloons and check in and pull us out of wells with love.”

“Thank you for loving us, those who do, and for the amazing, kindest Nick, and especially for my mother’s capacity for joy. It is so inspiring and beautiful,” she continued. “Happy everything mama. Your fight for joy despite also welcoming tears is the experience of watching a warrior up close. I love you x.”

Beckinsale's latest post comes after she remembered her late dad, Richard Beckinsale, with an emotional Instagram message featuring multiple throwback photos on Tuesday. Richard was just 31 when he died in 1979 of a heart attack.