They sent fans into a frenzy after they were spotted partying together in Byron Bay, north coast of New South Wales, Australia for New Year’s Eve.And three weeks on, Miley Cyrus has now sparked rumours she is engaged to Liam Hemsworth again after being pictured wearing the diamond engagement ring he gave her in 2012.However, Liam’s big brother Chris was keeping tight lipped on the situation when he spoke about the pair’s on-off relationship for the first time on an Australian radio station on Tuesday morning.

Last to hear: Chris Hemsworth says he is unaware if his brother Liam has rekindled his relationship with Miley Cyrus or if the pair are engaged.

Appearing on the Kyle & Jackie O Show, the 32-year-old actor said he simply didn’t know if Liam had rekindled his romance with the controversial singer, 16 months after they called it quits.

See more of the latest on Miley Cyrus and her ‘reconciliation’ with Liam Hemsworth.

On again? His comments come after the singer was spotted wearing an engagement ring on her wedding finger in her latest social media upload.Flashback: The ring worn is the same diamond which Liam presented to her when they first got engaged in 2012.Despite Chris stating he was unaware about his brother’s relationship status, he and wife, Spanish model Elsa Pataky, were pictured ringing in the New Year with the rumoured new couple earlier in the month.

Elsa shared multiple images of herself posing with Miley on social media after fans captured the group at the annual Falls Festival.

With the family: Chris’ wife Elsa Pataky shared multiple images of herself posing with Miley on social media as they attended the annual Falls Festival together during her surprise visit Down Under.

The image sent fans into a meltdown with many simply commenting ‘ENGAGEMENT RING!’.Two days earlier Miley was believed to be moving items into Liam’s Malibu home after she turned up to his residence with a U-Haul self-mover truck.

Miley and Liam first started dating in 2009 when they met on the set of The Last Song, and dated on and off for the next three years before getting engaged in June 2012.The couple lived together in LA for a further 14 months before they split in September 2014, both insisting they remained close friends.

Miley Cyrus