Christopher Schwarzenegger, the 13-year-old son of former California governor Arnold Schwarzenegger and his newly estranged wife, Maria Shriver (pictured, with Christopher), was released from the hospital Tuesday after over a week's stay. Christopher was admitted to intensive care last Sunday after a surfboarding accident in Malibu left him with broken bones, broken ribs and a collapsed lung.

Both of Christopher's parents took to Twitter to express their gratitude for their son's improving health. “Blessed to be able to take Christopher out of the hospital last night. What a feeling of relief knowing that he’s going to be fine," Shriver tweeted, adding, "I will forever be grateful to the amazing doctors, nurses and hospital staff in the ICU who helped my son." Arnold also chose to acknowledge the work of the hospital staff for taking good care of Christopher. He tweeted: “I knew Christopher couldn't be stopped! Big thanks to all the doctors, nurses & staff at UCLA that helped him recover.”

Christopher's accident, injuries and hospitalization undoubtedly came at one of the worst possible times for the Schwarzenegger family. The couple's 25-year marriage broke apart in May of this year when it was revealed that Arnold's ongoing affair with the family's housekeeper had produced a child, now 14. The housekeeper's pregnancy with Arnold's offspring overlapped with the time that Shriver was pregnant with Christopher, the youngest of the couple's four children, the Los Angeles Times reported.