The boy hopped in the snowed-in family car to warm up, but the engine was running and the exhaust pipe was blocked by snow, causing carbon monoxide to accumulate in the car.

CNN: STORY HIGHLIGHTS

An 11-year-old boy died of carbon monoxide poisoning after being overcome as he sat in a running car to keep warm, while his father was shoveling snow to get the car out of a snow bank in Boston's Dorchester neighborhood.

WSJ: A state-by-state look at the Northeast snowstorm

Stay in your car and keep warm by running the engine as much as you can.

BBC: UK snow and ice continue to disrupt travel

The department warned about the dangers of carbon monoxide poisoning from trying to stay warm in a car with exhaust pipes blocked by snow.

CNN: STORY HIGHLIGHTS