In a separate incident, emergency responders rescued an 8-year-old boy standing atop a submerged car and a 2-year-old and woman trapped inside.

MOUNT AIRY, Md. (AP) — A 13-year-old boy died after he was trapped in a storm drain in Maryland during heavy rainfall and flooding on the East Coast that also led to rescues from cars that were submerged in floodwaters, officials said.

"Despite their heroic efforts, the operation transitioned from a rescue to a recovery," the town's police chief said.