Part of a New York nuclear power plant remains offline as cleanup continues of transformer fluid that leaked into the Hudson River.

The plant owner says it could be weeks before Indian Point 3 is reopened.

Several thousand gallons of oil spilled into the Hudson after a transformer fire on the non-nuclear side of the plant.

Gov. Andrew Cuomo said Sunday the cleanup should take a day or two.

Cuomo said oil in the transformer had seeped into a holding tank that did not have the capacity to contain all the fluid.

The state Department of Environmental Protection set up booms over an area about 300 feet in diameter to keep the oil from spreading.

The reactor itself is deemed safe and stable. The plant’s adjacent Unit 2 reactor remains in operation.

(AP)