We are currently experiencing one of the worst, most devastating flooding events in Kentucky’s history.” Kentucky Gov. Andy Beshear said

At least one person died in Kentucky after rain battered the eastern part of the state, flooded streets and trapped people in their homes, officials said.

The region received an estimated eight to 12 inches of rain overnight. Four million remain under flood alerts across Kentucky, southern Ohio, West Virginia and southwestern Virginia where rounds of rain will continue through Friday afternoon.

“It has been a tough night and maybe an even tougher morning for so many of our residents,” Kentucky Gov. Andy Beshear said at a news conference on Thursday. “We are currently experiencing one of the worst, most devastating flooding events in Kentucky’s history.”

The governor also said the state expects "loss of life" and "massive property damage" that will take "not months, but likely years for many families to rebuild and recover from."

Beshear has activated the Kentucky National Guard and signed a state of emergency, which will "unlock the resources needed and also tell the people of eastern Kentucky that we are going to be there for them," he said.

The sheriff in Perry County, where the person died, described the flooding as something "unlike (anything) I’ve ever seen."

U.S. Sen. Rand Paul, R-Ky., tweeted about the floods, urging anyone in need of assistance to contact his office.

"Praying for all those affected," he tweeted.