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

A flash flood warning was in effect in New York City until 9:45 p.m., and New Jersey Gov. Phil Murphy declared a state of emergency. Middlesex, Morris and Somerset counties remained under a flood warning until 7:15 a.m. Tuesday.

Just one day after a fast-moving storm swept through New Jersey, causing dramatic rescues, a home explosion, and multiple deaths, officials have issued both a Flood Watch and Heat Advisory for the region.

Two people in Plainfield, New Jersey, died after their vehicle was swept away by floodwaters during a severe storm overnight. The storm caused flash flooding across the US Northeast. New Jersey Governor Phil Murphy confirmed the fatalities on Tuesday.

The National Weather Service issued a flood warning at 9:07 p.m. on Monday in effect until Tuesday at 12:15 a.m. for Bergen County.

Two people were killed in New Jersey following flash flooding in the northeastern United States that caused travel chaos, authorities said Tuesday, as the region braced for more heavy rain.

Flooding is causing problems on multiple New York City subway lines as torrential rain pummels the Tri-State Area.

Forecasters say some thunderstorm cells have the potential to dump as much as 2 to 3 inches of rain in one hour, posing a risk of rapid flooding.