After checking into a treatment facility for alcohol dependency this past weekend, long-time ABC News reporter Elizabeth Vargas released a statement thanking people for their support and reaffirming her fight to control her addiction.

"As so many other recovering alcoholics know, overcoming the disease can be a long and incredibly difficult process," Vargas said. "I feel I have let myself, my co-workers and most importantly my family down and for that I am ashamed and sorry." 

She added that she was "committed to battling and addressing this debilitating disease."

This latest relapse marks the second time in the past year that the 51-year-old has checked into rehab; revealing last January to “Good Morning America” co-anchor George Stephanopoulos she initially started drinking to deal with anxiety and stress. "And it slowly escalated and got worse and worse,” she added.

Vargas said that realizing she was an alcoholic was one of the hardest parts of coping with the disease. “I mean, denial is huge for any alcoholic, especially for a functioning alcoholic, because I, you know, I’m not living under a bridge. I haven’t been arrested,” she said. 

In a statement, ABC said its stands "squarely behind her" and is focused on her health. "We look forward to having her back at ABC News when she feels ready to return," the network said.

Michael d'Estries ( @michaeldestries ) covers science, technology, art, and the beautiful, unusual corners of our incredible world.

ABC News reporter Elizabeth Vargas checks into rehab
'20/20' anchor says she checked into a treatment facility last weekend while away on vacation.