A tornado struck suburban Detroit on Wednesday, killing a 2-year-old boy and critically injuring his mother when a tree fell on their house in Livonia, Michigan.

The quick-developing tornado uprooted a tree, which crashed through the roof and onto a bed where the family was sleeping.

Emergency crews worked for nearly an hour to rescue the victims. The toddler was pronounced dead at the scene, and the mother was hospitalized in critical condition.

A 2-week-old sibling in a separate room was unharmed.

Mayor Maureen Miller Brosnan expressed condolences, noting the lack of advance warning from the National Weather Service, which described the tornado as a “spin-up storm” that evaded early detection.

The EF1 tornado had peak winds of 95 mph and a path over 5 miles long, the Associated Press reported.

In Maryland, emergency workers responded to reports of people trapped in collapsed structures after a tornado was spotted in Montgomery County.

Three structures in Gaithersburg collapsed, injuring five people, including one critically, when a large tree fell on a house.

The National Weather Service issued ongoing tornado warnings across Maryland and Delaware.

Montgomery County Fire and Rescue officials reported significant damage and power outages, prompting door-to-door checks to assess residents’ needs for emergency services or relocation.

Written by B.C. Begley