Harley Quinn is officially hitched: "Suicide Squad" star Margot Robbie married her boyfriend Tom Ackerley in a top-secret ceremony in her native Australia this past weekend.

Robbie confirmed the nuptials with an Instagram post shared on Monday night, letting the image do the talking. In the photo, the actress and Ackerley share a kiss while Robbie extends her ring finger, which is clad in a gorgeous diamond engagement ring sitting atop a thin wedding band.

A photo posted by @margotrobbie on

Rumors about Robbie getting hitched began to swirl over the weekend when the actress was seen arriving at an Australian airport wearing a shirt that said, "Say 'I Do' Down Under." Family and friends of the couple also shared some cryptic posts on social media hinting that there was a big occasion involving the pair underway.

The intimate ceremony took place on Sunday at a popular wedding venue in Byron Bay, a resort town in New South Wales, Australia. Robbie was reportedly walked down the aisle by her mother.

The 26-year-old Aussie actress and Ackerley, a British assistant director, first met in 2013 on the set of the WWII drama "Suite Francaise." They began dating a short time later, and reportedly got engaged this summer, though no official engagement announcement was made by the couple.

Congrats to the newlyweds!

[via: Margot Robbie, People]