Arnold Schwarzenegger: Christopher Is "Doing Much Better"

Update: He's out of the hospital! Maria Shriver and Arnold Schwarzenegger have confirmed that their 13-year-old son, Christopher, has been released from the hospital after a week in the ICU.

"Blessed to be able to take Christopher out of the hospital last night," Shriver tweeted today (July 26). "What a feeling of relief to know that he's going to be fine. Thank you for all your thoughts and prayers. The whole family, especially Christopher, felt your love."

Both Maria and Arnold also thanked the "amazing doctors, nurses and hospital staff in the ICU" at UCLA for helping their son following his boogie boarding accident, with Maria expressing hope for the other patients who remain in care.

We were very lucky. Many patients and families we met have been there so long and have no end in sight," writes the former First Lady of California. "I pray for their recovery."

Earlier today, Arnold tweeted his thanks to supporters, but gave no signs that his son had already been released from the hospital. Below is the original post with Schwarzenegger's update on Christopher:

Almost 10 days after his 13-year-old son's horrific accident, former Governor of California, Arnold Schwarzenegger took to Twitter to thank his followers for their kind words during this difficult time and to update them on Christopher's progress.

"Thanks for all your support for Christopher," writes Schwarzenegger. "It means a lot to me & to him.

He's doing much better & we'll have him back at full speed soon."

Arnold's estranged wife, Maria Shriver, has been by their youngest son's side since the July 17 boogie boarding accident that left him in the ICU with a collapsed lung, broken bones, and broken ribs.

A "horribly shaken" Shriver was with Christopher in Malibu at the time of the incident.

Arnold and Christopher were last spotted together on July 16, having breakfast at Brentwood's Le Pain Quotidien.