NEW YORK — Two people in New Jersey were killed after their vehicle was swept up in floodwaters during a storm that moved across the U.S. Northeast overnight, authorities said Tuesday.

Gov. Phil Murphy, a Democrat, noted the deaths occurred in the northern New Jersey city of Plainfield, where there were two storm-related deaths July 3. A third person was killed in North Plainfield during that previous storm.

“We’re not unique, but we’re in one of these sort of high humidity, high temperature, high storm intensity patterns right now,” Murphy told reporters after touring storm damage in Berkeley Heights. “Everybody needs to stay alert.”

The names of the two latest victims were not immediately released Tuesday. Local officials said the vehicle they were riding in was swept into a brook.

“Emergency personnel responded quickly, but tragically, both individuals were pronounced dead at the scene,” the city posted online.

The heavy rains also caused flash floods in New York and south-central Pennsylvania on Monday night.

— The Associated Press