ALLENTOWN, Pennsylvania (AP) – A man used a backhoe to break into a museum owned by his father – the pioneering fantasy artist Frank Frazetta – in an attempt to steal 90 paintings valued at $20 million, police said Thursday.

State police charged Alfonso Frank Frazetta, 52, with theft, burglary and trespass after they say he was caught loading the artwork into his trailer and SUV.

The elder Frazetta, 81, is renowned for his work on characters including Conan the Barbarian, Tarzan and Vampirella. He was in Florida at the time of the theft.

His son’s motive may stem from a family feud over the master illustrator’s assets, according to a law enforcement source who spoke on condition of anonymity because it is still early in the investigation.

Frazetta was arraigned and sent to the Monroe County jail. Bail was set at $500,000. Officials didn’t know whether he had a lawyer yet.

Police said that Frazetta and another man used the backhoe to enter the Frazetta Art Museum in the Pocono Mountains region on Wednesday afternoon, tripping a burglar alarm.

A trooper who responded said Frazetta claimed he had been instructed by his father “to enter the museum by any means necessary to move all the paintings to a storage facility,” according a police affidavit.

The elder Frazetta told police that his son did not have permission to enter the museum or to remove any artwork. Frank Frazetta’s attorney, Gerard Geiger, said the stolen paintings were insured for $20 million, according to court documents.

Geiger did not immediately return a phone message Thursday.

Police say charges are pending against a second suspect.

Copyright 2009 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

AP-CS-12-10-09 1732EST

ADDITIONAL LOTS OF NOTE