NEW YORK — Horrified bystanders banded together to lift a 5-ton school bus off a pregnant woman pinned underneath, enabling doctors to save her son.

Donnette Sanz, 33, a traffic agent for the city police department, was pronounced dead Thursday, shortly after her baby’s birth by an emergency Caesarean section. The 3-pound, 6-ounce boy was in critical condition.

“It’s a terrible poignancy that Donnette’s son’s birthday will now coincide with the day his mother died,” Mayor Michael Bloomberg said in a statement. Read the rest from the Associated Press here. (Thanks to Paul Latour for this.)