Ashley Judd, Dario Franchitti Ashley Judd, Dario Franchitti

Ashley Judd thanked fans for their support Tuesday after her estranged husband, race car driver Dario Franchitti, got into an accident during the Grand Prix of Houston on Sunday.

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"Amazed by the incredible outpouring of care & prayers," Judd tweeted on Monday. "Thanks, everyone. Keeping our heads down here & doing what's in front of us to do."

Although Judd and Franchitti announced in January that they were splitting up after 11 years of marriage, USA Today reports that Judd rushed to his side after the accident. "I have only clothes on my back & the dogs but that's all that we need & we are on our way," she tweeted Sunday.

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Franchitti suffered a concussion, a broken right ankle and two fractured vertebrae in the crash. "Thank you to everyone for all the well wishes," he tweeted Monday. "They mean a lot to me."

The accident also left 13 spectators and a series official injured. "I would also like to send my best to all the fans involved in the accident and hope that everyone is alright," Franchitti wrote.