NEW YORK -

ABC anchor Elizabeth Vargas has checked into rehab for alcohol abuse.

The "20/20" co-anchor, who has also filled in for Robin Roberts on "Good Morning America," has been missing from the network for the past few weeks.

Vargas reportedly checked herself into rehab a few weeks ago and plans to be there a while longer.

Vargas sent out the following statement:

“Like so many people, I am dealing with addiction. I realized I was becoming increasingly dependent on alcohol. And feel fortunate to have recognized it for the problem it was becoming. I am in treatment and am so thankful for the love and support of my family, friends and colleagues at ABC News. Like so many others, I will deal with this challenge one day at a time. If coming forward today gives one other person the courage to seek help, I’m grateful.”

ABC supports Vargas on her recovery.

"We are proud of the steps Elizabeth has taken and are pulling for her recovery" said Jeff Schneider, senior VP of communications for ABC News.  "We look forward to having her back home at ABC News where she has done so much distinguished work over the years.   Elizabeth is a member of our family and we will support her in every way we can."