Christopher Schwarzenegger -- Released from Hospital

7/26/2011 9:50 AM PDT

Christopher Schwarzenegger -- Released from Hospital

Arnold Schwarzenegger and Maria Shriver's 13-year-old son Christopher was released from the hospital last night -- more than a week after a boogie boarding accident left him seriously injured.

Maria made the announcement on Twitter moments ago, claiming her son was "going to be fine."

As we previously reported, Chris spent days in the ICU following the accident in Malibu -- where he was treated for multiple broken bones and a collapsed lung.

UPDATE: Arnold just had his own proud parent moment, tweeting, "I knew Christopher couldn't be stopped! Big thanks to all the doctors, nurses & staff at UCLA that helped him recover."