Michael Douglas and Catherine Zeta-Jones have allegedly been living separate lives since May.
Speculation has been rife that their marriage is on the rocks, with the couple not seen out together since April. It has now been alleged that Michael and Catherine have decided to spend time apart to consider their future.
"They're taking a break," a source told PEOPLE.
The magazine claims that divorce papers have not been filed and there hasn't yet been a move to legally separate.
It has been suggested that health battles have put a strain on the relationship.
In 2010 Michael was diagnosed with throat cancer, while Catherine has sought treatment for bipolar II disorder.
“The stress has taken a toll on their marriage,” a friend explained.
According to PEOPLE, the pair decided to take a break after Michael returned from the Cannes Film Festival in May. This coincided with 43-year-old Catherine completing another stint in a mental health facility.
There is still hope the stars can find a way to save their marriage. Sources close to the couple believe they can still resolve their issues and remain together for the sake of their two children, Dylan, 13, and Carys, ten.
"They want the best for their kids, no matter what happens," a source added.
Catherine and Michael married in November 2000, and the brunette previously revealed she found divorces “repulsive” and insisted it was “in her genes” to remain married for life.
Michael, 68, is currently holidaying in Sardinia, while Catherine is in New York with the kids.
Catherine recently admitted she wasn't spending much time with her husband, fuelling rumours about their marriage.
"Michael's doing a movie on the East Coast with Diane Keaton, so he's working,” Catherine told ET Online. "My children are actually at sleep-away camp, so I'm missing them desperately."
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