Zac Efron and Sami Miro split after nearly 2 years of dating

Attention, ladies! Zac Efron is single once again.

The Baywatch star and model Sami Miró have split after nearly two years of dating, a source confirms to ET. The 28-year-old actor sparked breakup rumors over the weekend when he unfollowed Miró on social media and deleted all photos of them together.

WATCH: Zac Efron Says He '100 Percent' Believes in Love at First Sight

Miró has yet to delete her own pictures with Efron and has a handful up from when they attended the MTV Movie Awards together on April 9.

The former couple went public in October 2014 during a trip to Copenhagen. While they have shared a number of snapshots since then -- like their sweet anniversary posts to one another on Sept. 5 -- both remained fairly tight-lipped on the relationship.

"I've never spoken about us before, but, um, it's definitely different," Miró revealed in a rare interview last year. "If I was dating someone who wasn't in the limelight, I might have more photos on [Instagram] of our relationship. But I do think it's important. I mean, it's what is going on in my life, and I think that my social media can still represent that."

Watch Efron get very, very NSFW fanboying over his Dirty Grandpa co-star, Robert De Niro, in the video below.