Juan Sharma/Bruja/ PacificCoastNews.com

A child- and auto-safety group criticized  Kate Gosselin after one of her eight children crawled under the family van Thursday while she sat behind the wheel.

“A minivan is a 3,000-pound, lethal weapon and having children crawling around it is not prudent,” KidsAndCars.org president and founder Janette Fennell told RadarOnline.com.

The little boy was photographed crawling beneath the van to retrieve a paper after getting off the school bus in Reading, Pa.

Gosselin’s rep did not respond immediately to ABCNews.com’s request for comment.

The mother of eight had been waiting at the bus stop to pick up her children. Radar reported that she stayed in the driver’s seat oblivious to what was happening underneath the van, as the other children piled in. The little boy, one of the sextuplets, got into the car safely before Gosselin drove away.

But the incident still outraged Fennell.

“She should have gotten out of the car to supervise them, especially when you have that many children,” Fennell told Radar. “Kids tend to put themselves in harm’s way in an instant.

“You should never leave children unattended in or around motor vehicles. Even if they are all capable of getting themselves into the van and getting buckled up,” she added. “Children at that age are unpredictable.”

The criticism is another blow to the former darling of reality television. Her show, “Kate Plus 8,” was canceled in August after seven seasons and 150 episodes.

Gosselin’s new job is blogging about coupons for CouponCabin.com.