Chief Justice John Roberts was taken to a hospital in Maine on Monday after falling while on vacation, the Supreme Court told NBC News.
Roberts, 52, fell at his summer home between 2 and 3 p.m. ET off Port Clyde. The court said he was taken to a hospital as a precaution.
An emergency medical technician said Roberts was conscious and alert during the ambulance ride, NBC News' Pete Williams reported.
UPDATE: MSNBC is now reporting it as a "seizure" described as "isolated, idiosyncratic". It is apparently not the first time Justice Roberts has suffered from such seizures.