(Reuters) – More forecasts of heavy rains posed new danger on Tuesday in parts of New York state and Pennsylvania, where rescuers hauled people from waterways, flooded cars, and homes.

Following several days of heavy rain throughout the northeastern United States, the National Weather Service issued new warnings of flash floods for areas around Binghamton, New York, near the Pennsylvania border.

“Many roadways are now closed and no unnecessary travel is advised,” the Seneca County, New York, sheriff’s office said in a statement. “Citizens are urged to shelter in place and move to higher ground if they are experiencing high water.”

Video from the region showed emergency responders using rafts to pull people from swollen waterways, as well as flooded homes and cars. Federal forecasters warned that parts of the region could see as much as 4 inches (10 cm) more rain today.

“Flooding is one of the primary killers with regards to weather. It’s not tornadoes. It’s not wind damage,” said Brett Rossio, an Accuweather meteorologist. “It doesn’t take much. Even just a foot of water can pull you away very easily.”

More than 8,000 people had lost power in areas drenched by the storms and the Red Cross said it was operating shelters. It was not immediately clear how many people were in them.

Both Pennsylvania and New York activated their emergency response centers for the storms, which started over the weekend.

(Reporting by Makini Brice; Editing by Scott Malone and Susan Thomas)