POTTSTOWN, Pa. (AP) — Authorities say a southeastern Pennsylvania woman has confessed to setting fire to a police detective's home.

Donna Krupp is the detective's neighbor. Montgomery County prosecutors said Friday that Krupp held a grudge against Detective Ernie Morris because he participated in an investigation of her son.

The Reading Eagle reports that prosecutors say Krupp was caught on video setting the blaze and has confessed.

Officials say Morris, his wife and their two daughters were vacationing at Disney World in Florida at the time of Thursday's fire.

The home was destroyed.

Krupp was arraigned Friday on arson and related charges. She is jailed on $1 million bail and cannot be reached for comment.