Actor Ben Affleck has checked himself into rehab for alcohol addiction, according to a source close to the star.

Affleck, who has been open about his struggles with alcoholism, previously sought treatment in 2001 and 2017.

In March 2017, he wrote a Facebook post about his experiences in recovery, saying: I have completed treatment for alcohol addiction; something Ive dealt with in the past and will continue to confront.

Affleck has been vocal about wanting to be a good role model for his children and to let them know that there is no shame in seeking help when its needed.

Affleck has three children with his estranged wife, Jennifer Garner.

The couple announced their separation in 2015 after 10 years of marriage and filed for divorce in 2017.

The divorce has not yet been finalised.

Garner was photographed on Wednesday walking into Afflecks home with an unidentified woman.

The three were later spotted getting into an SUV driven by Garner, with Affleck in the back seat.

Neither Garner nor Affleck have commented publicly on his latest stint in rehab.

Affleck has had a successful acting career, with lead roles in films such as Good Will Hunting, Gone Girl, and Argo, for which he won the Academy Award for Best Picture.

Despite his professional success, Affleck has struggled with personal issues in recent years, including his high-profile split from Garner and his admissions of alcohol addiction.

Affleck has also been in the news recently for his role as Batman in the DC Comics movie franchise.

After speculation that he would no longer be playing the iconic superhero, Affleck confirmed at Comic-Con in July that he would be appearing in the upcoming film The Batman.

Afflecks decision to enter rehab has been met with support from fans and colleagues alike.

Actress Rosie ODonnell tweeted: sending love and hope to ben affleck – addiction is a lifelong battle – stay strong ben – u got this my friend.

Afflecks struggles with addiction have also brought attention to the larger issue of substance abuse in Hollywood.

Many celebrities have been vocal about their own experiences with addiction, including Demi Lovato, Bradley Cooper, and Robert Downey Jr.

Treatment options for alcohol addiction include therapy, medication, and support groups.

It is important for those struggling with addiction to seek professional help and to know that recovery is possible.

Afflecks decision to enter rehab is a positive step towards getting the help he needs.

By sharing his experiences with addiction, he is helping to reduce the stigma surrounding mental health issues and inspiring others to seek help when they need it.