Holly Marie Combs, Shannen Doherty’s Charmed co-star, has shared a heartfelt tribute to the late actress, just one week after her passing.

Combs, 50, took to Instagram on Saturday to post a series of memories of Doherty, as she reflected on the past week since her co-star’s passing following a long battle with cancer at the age of 53.

“It’s been one week and it feels like forever. I spent all day looking for one particular picture and found just about every picture but that one. Shannen promised to haunt me, but I thought she’d be occupied with a few others at first. Alas, I’m sure it will show up when and where I least expect it. My rock. 10:18,” she captioned the post.

Set to the Faith Hill song “There You’ll Be”, the post featured a collection of photos showcasing Doherty over the years, including throwback snaps of the late actress having a blast.

Shannen Doherty’s Charmed co-star Holly Marie Combs has shared a touching tribute to the Beverly Hills, 90210 actress

Doherty had been battling breast cancer since 2015, with the disease spreading to her brain in June last year.

Combs, who played Piper Halliwell in the long-running WB show Charmed about a trio of witch sisters, first broke her silence on Doherty’s death last Saturday.

She lauded Doherty for being a “fierce fighter until the end” in her post. “My better half of 31 years. There is a hollow in my chest and I can’t seem to catch my breath. A part of me is missing even though I know exactly what you would say to me right now. I know exactly what you would tell me to do right now,” she wrote on Instagram.

“I know your undying spirit will live in me and my kids who you loved as your own. They will walk with your sense of purpose and pride. You taught me the meaning of family. You were and will be forevermore my sister. I love you.”

The post contained memories of the star

It featured snaps of Doherty over the years

The actress looked like she was having the time of her life in various images

The tribute was set to the Faith Hill song There You’ll Be

Combs seen in a throwback snap with Doherty

Shannen passed at age 53 following a battle with cancer last weekend

Combs and Doherty had further bonded in recent months when the former opened up about the behind-the-scenes drama between her, Alyssa Milano, and Doherty on their hit series, Charmed.

While discussing the Beverly Hills, 90210 star’s abrupt exit from the series in 2001 after its third season, on Doherty’s podcast, Let’s Be Clear, Combs revealed she had a meeting with show producer, Jonathan Levin, about her co-star’s firing.

Combs claimed Levin told her: “We didn’t mean to — but we’ve been backed into this corner — we’re basically in this position where it’s one or the other.”

“We were told [by Alyssa] it’s her or [Shannen] and Alyssa has threatened to sue us for a hostile workplace environment,” she recalled Levin telling her.

On Sunday, Doherty’s publicist Leslie Sloane confirmed the actor’s death.