Supreme Court Chief Justice John Roberts took a spill at his home and ended up being taken to the hospital on Monday.

A spokesman at the Supreme Court said Roberts fell while at his summer home in Maine, and he was hospitalized as a "precaution." He apparently took a fall around 2 p.m. ET.

"He's fine," said another source close to Roberts.

Roberts, 52, was taken to Penobscot Bay Medical Center in Rockport, Maine, according to St. George Fire Chief Tim Polky. He was transferred from his house to the mainland on a private boat; from there he was transferred to an ambulance, Polky said.

"He was conscious and alert when they put him in the rescue (vehicle) and took him to Penobscot Bay Medical Center," Polky said.

But MaineCoastNow.com reported that St. George Ambulance responded to a call of a man who had fallen 5 to 10 feet and landed on a dock, hitting the back of his head. The patient was ashen and was foaming at the mouth. The patient had reportedly suffered a grand mal seizure.

Click here to read the report.

Roberts became chief justice in September 2005, a nominee of President Bush. Bush was informed of the accident by White House Chief of Staff Josh Bolten.

A former high school football team captain at his Indiana boarding school, Roberts has described himself as a "slow-footed linebacker." He also was a regional champion in wrestling as a teenager.

Roberts has no known medical conditions. The father of two young children, he is the youngest justice on the court. Justice John Paul Stevens is the eldest at age 87.

In 2006, Roberts and his wife bought a house and land on Hupper Island off of Port Clyde, which is part of the town of St. George. The home had belonged to Steve Thomas, the former host of the "This Old House" television show, according to the Knox County Registry of Deeds.

FOX News' Bret Baier and Ian McCaleb and The Associated Press contributed to this report.