NBC 7’s Dave Summers reports that witness Ray Butcher estimates the chunk of metal is the size of a catchers mitt.
After an explosion shook a Poway business on Wednesday afternoon, many people took to social media to share what they heard or saw.
Ray Butcher said he was working nearby when suddenly he heard a loud boom and a chunk of debris fell through his office building (see above photo).
"When I stood up, there was a hole in one of our ceiling tiles, exposing daylight," Butcher wrote on Instagram. "It destroyed the cubicle it landed in."
Here are several more accounts from others of the explosion:
