A fire on Saturday caused about $20,000 in damage to the home of Tom Clancy, a best-selling author of political thrillers, authorities said. Firefighters were called to Clancy's Calvert County, Maryland, home about 12:15 p.m., said Lt. Fred Holzberger of the Prince-Frederick Volunteer Fire Department.

Clancy and his family were home at the time, but no one was injured, Holzberger said. He said the fire started on the deck and reached the home. The blaze was extinguished in about 20 minutes. The fire is under investigation by the Maryland fire marshal's office