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OTRC: Arnold Schwarzenegger: son Christoper 'doing much better'

Arnold Schwarzenegger and Maria Shriver's 13-year-old son Christopher Schwarzenegger is "doing much better" following a boogie boarding accident in Malibu last week that landed him in the ICU, the former governor wrote on Twitter.

"Thanks for all your support for Christopher," Schwarzenegger wrote on Twitter on Monday. "It means a lot to me & to him. He's doing much better & we'll have him back at full speed soon."

A source told People magazine that Christopher entered the hospital on July 17, suffering from a collapsed lung, broken bones and broken ribs. His mother was reportedly with him at the time of the accident and had not left his side since, sleeping at the hospital with her son.

"A few days ago our son Christopher suffered an accident at the beach," Shriver and Schwarzenegger said in a joint statement obtained by OnTheRedCarpet.com on July 22. "While it has been a very scary week, Christopher is surrounded by his family and friends. He is a brave boy and is expected to make a full recovery."

"On behalf of our entire family, we want to sincerely thank the paramedics and lifeguards who responded so swiftly as well as the doctors, nurses, emergency room and hospital staff who have cared for our son," the statement continued. "They have been extraordinary to him and to us. We thank everyone for their thoughts and prayers and ask for respect and privacy for Christopher and our family."

Christopher's brother Patrick thanked his Twitter followers for their support on Friday, writing, "Thank you everyone for your messages about my brother. This kid is strongest kid I ever seen. Keep praying."

His older sister Katherine also took to Twitter, asking her followers to pray for her brother, "Thank you guys for ur concern and prayers for my baby brother! He's a tough little guy and getting better! Please keep praying for him!"

Schwarzenegger and wife Maria Shriver announced their separation after 25 years of marriage on May 9. On May 17, it was revealed that he had fathered a secret child more than 10 years ago. On Wednesday, Mildred Patricia Baena, the family's former housekeeper, was identified by news outlets as the woman with whom Arnold Schwarzenegger fathered a son out of wedlock some 14 years ago.

Schwarzenegger has confirmed his infidelity and said in a statement he had apologized to his family. The woman with whom he fathered a son has not commented on the matter.

Shriver, 55, moved out of the couple's mansion near Los Angeles earlier this year, after Schwarzenegger told her he had had an affair with a household staff member who had worked for their family for some 20 years. He did not identify Baena by name. She retired in January.

On July 1, it was reported that Shriver had filed for divorce from Arnold Schwarzenegger. She reportedly signed the divorce papers on June 18 and filed them at a Los Angeles court on Friday, July 1, according to court documents obtained by OnTheRedCarpet.com.

Shriver cited irreconcilable differences as the reason for the split and is seeking joint legal and physical custody of her and the 63-year-old actor's sons Patrick, 17, and Christopher, 13. The two also have two adult daughters, Katherine, 21 and Christina, 19.

In May, Schwarzenegger asked his talent agency, Creative Artists Agency, to put his pending entertainment projects on hold while he focuses on his personal life.

On July 20, Schwarzenegger asked a court not to award spousal support to his estranged wife and asked that attorney fees and legal costs be jointly paid.

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