Houston Mayor Sylvester Turner argued on Sunday that an evacuation of Harris county, which is currently seeing “unprecedented” flooding in the aftermath of Hurricane Harvey, would have led to a far worse calamity for area residents.

“If you think the situation right now is bad, you give an order to evacuate, you are creating a nightmare. Especially when it’s not planned,” Turner said during an update Sunday on the city’s response to Hurricane Harvey.

Turner argued that an evacuation order has to be “very well-coordinated all the way from Houston to the destination point.”

“If you do it or attempt to do it and it’s not coordinated, not done right, you are literally putting people in harm’s way, and you’re creating a far worse situation,” Turner said.

The mayor, who was elected in 2015, stood by his decision not to issue an evacuation order for Houston because, while the city anticipated a lot of rain, Houston was not in Harvey’s direct path.

He said that because of the flooding, every neighborhood would have to be evacuated, which is “dangerous.”

“You cannot put in the city of Houston 2.3 million people on the road — that is dangerous,” Turner said. “When you combine Houston and Harris county, you literally cannot put 6.5 million people on the road.”

Turner said the best place for people is to be in their homes.

Hurricane Harvey — which weakened to a tropical storm by Saturday afternoon — has led to record levels of rainfall in the Houston area and has so far left three dead.