The National Weather Service urged people to avoid travel if a flash flood warning was in place for their area.

New Jersey is under a state of emergency after a flash flood caused at least two deaths in Plainfield and damage across Union County.

Heavy rain has swept across parts of the Northeast, inundating sections of New York and New Jersey with flash flooding that stranded vehicles in roadways, closed subway lines and led to the declaration of a state of emergency.

New York and New Jersey hit by torrential rain and flash floods, forcing highway closures, suspending subway lines and flight delays.

In Plainfield, New Jersey, two people were killed when their car was swept into Cedar Brook, city officials said. This comes days after two others were killed in severe storms in Plainfield on July 3.

A state of emergency was declared in New Jersey after slow-moving thunderstorms unloaded a significant amount of rain, resulting in dangerous flash flooding across the Northeast into Monday night. At least 2 were killed.

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MTA Chair and CEO Janno Lieber said that about 16 million gallons of water were pumped from the subway system on July 14