LucasArts President Resigns Abruptly

The president of LucasArts Entertainment Co., Simon Jeffery, abruptly resigned. A company spokeswoman would not say why he resigned or who would replace him at the San Rafael, Calif., game publisher he led for more than three years.

LucasArts, which produces video and computer games based on the Star Wars movie franchise, is a subsidiary of Lucasfilm, a privately held company owned by director George Lucas.

Its titles include “Galaxies,” an online game that launched this summer, and “Knights of the Old Republic.”