Hurricane Ida remnants hit northeast US with deadly floods and tornadoes

The Schuylkill River burst its banks in the Manayunk neighborhood of Philadelphia. Residents had to be evacuated by the National Guard and the Red Cross. At least three people died in Pennsylvania as a result of the flash floods.

Roads on New York City's Upper East Side were completely submerged, with at least nine people dying in the city overnight. Many NYC residents watched their basement or first-floor apartments fill with water before fleeing to higher ground.

The Metropolitan Transportation Authority (MTA) had to briefly shut down the entire subway system as storms tore through New York. Social media users uploaded videos of stations filling up with water. It took the better part of Thursday for the MTA to pump most of the water out.

The storm didn't stop as it headed north, pouring historic amounts of rain on parts of New England. Narragansett, on the Rhode Island coast, saw many of its roads covered with floodwaters and in other parts of the state, streets completely collapsed and beaches were filled with debris. A rare tornado watch was issued on Cape Cod.

Several US states were also hit by tornadoes that formed in the storm's wake. In one New Jersey neighborhood, many homes were ripped apart by forceful winds. At least eight people died as buildings flooded and roads were overrun in the state.

Many of New Jersey's highways were still submerged, collapsed or covered in dangerous debris on Thursday. Governor Phil Murphy called upon residents to stay home so emergency workers could clear the roads.

Farther south, Maryland also saw tornado damage. Several businesses in the capital, Annapolis, sustained damage and roads became impassable.