A California couple has been left baffled after a slab of ice plummeted from the sky and into their attic, leaving a massive hole in their roof.

Jon and Renae LeClair said the “sonic boom” of the ice crashing through their Big Bear home just past 10:30 p.m. Aug. 8 was so startling that they thought they were being invaded by intruders.

“My wife came out and she thinks somebody’s breaking into the house. I said I don’t think so; it was like a cannon shot,” Jon told ABC 7.

The pair investigated the home to find shattered glass scattered throughout, but no signs of strangers or thieves.

There also wasn’t evidence that a bear broke into the home, as Renae also theorized to be a possibility, considering their property is surrounded by the San Bernardino National Forest.

Instead, they found a 24-by-24-inch hole in their roof and a block of ice the size of a bowling ball in the attic.

It landed just inches away from a wall that laid against the couple’s son — but fortunately, he had just left home for university, they said.

Nearly a month later, the source of the ice remains a mystery.

At first, Jon theorized it came from a meteorite, but figured the summer temperatures hovering around 80 degrees were too warm to sustain the falling ice.

He and his wife now believe the chunk descended from a passing plane after frozen moisture broke loose from the jets.

Flight Aware data shows that aircraft routinely fly over the LeClair home on their way to LAX.

The theory is not unfounded — just a week later, a chunk of ice estimated to weigh as much as 20 pounds smashed through a Massachusetts home.

In 2015, a slab of ice the size of a basketball plummeted through a Modesto, California home, more than 350 miles north of the LeClair residence.

The Savath family at the time compared the noise to a bomb exploding.

“This is going to kill someone eventually,” said Jon, adding that he isn’t sure what can be done to address the issue

“I have no clue. I can’t get a hold of the FAA. [The National Transportation Safety Board] says it’s not their territory. I filed a report with the sheriff’s department and they’re just scratching their heads.”