A Louisiana couple says it’s a “Christmas miracle” that they were not injured when a bomb that police said was intentionally left at their home exploded, according to several published reports.

“We think it was our Christmas miracle,” Tracy Hewlett told CBS News, adding that she, her husband Bobby and their four pets did not suffer any injuries in the blast early Saturday.

The Hewletts own and live at the Holly Hill Farm Equestrian Center in Benton, Louisiana.

According to the Bossier Sheriff’s Office, one of their maintenance workers named Douglas Holley is accused of making a bomb and detonating it in an attempt to kill the Hewletts. Law enforcement authorities allege Holley placed the bomb in a crawl space below their bedroom.

Tracy Hewlett told The Bossier Press-Tribune that she and her husband were asleep in bed when she saw a huge flash of light and was launched into the air. They were covered with debris, including shards of glass and wood, but were able to leave the house to telephone emergency responders.

“As we walked out, we just looked at each other and said it was a miracle,” Tracy Hewlett told The Bossier Press-Tribune. “We literally stopped, looked up and said, thank you Jesus.”

Tracy Hewlett told the newspaper she and her husband initially thought it might have been a gas explosion, but investigators ultimately determined that the bomb had been placed right below their heads. She said the two of them definitely had “divine protection” to walk away unscathed.

The Bossier Sheriff’s Office said it searched a separate home on the horse farm property where Holley lived and found materials that could be used to make explosives, as well as evidence that he had looked up “bomb-making information.” Police said he worked at the farm for four years, and that his job as a maintenance worker would have allowed him to access the explosion site.

He’s being held on two counts of attempted first-degree murder and one count of bomb making, authorities said in a news release. Authorities did not disclose a motive, but said an investigation found “the explosion was not accidental, but purposely planned and specifically targeted.”