GRAND JUNCTION, Colo. (AP) -- Snowmobiler Caleb Moore remains in critical condition after a dramatic crash at the Winter X Games in Aspen.

A publicist for the family reissued a statement Tuesday thanking fans, friends and family for their support and asked for continued prayers.

The 25-year-old was performing a flip Thursday when he clipped the top of a jump and went over the handlebars. The snowmobile rolled over him, but he walked off the course with help and went to a hospital with a concussion.

While there, he developed bleeding around his heart and was flown to Grand Junction for surgery Friday. His family said Sunday that Moore then had a secondary complication involving his brain. They didn't provide details.

Moore's younger brother, Colten, also crashed in the competition and suffered a separated pelvis.