Power to more than three million homes in the US east coast was knocked out in an unexpected October storm which dumped up to 2ft of snow.

Roads, railways and flights were knocked out and passengers on a JetBlue flight were stuck on an aircraft in Hartford, Connecticut, for more than seven hours.

The storm was blamed for at least 11 deaths and states of emergency were declared in New Jersey, Connecticut, Massachusetts and parts of New York.

Communities in western Massachusetts were among the hardest hit as snowfall totals topped 27 inches in Plainfield. Nearby Windsor, Connecticut, had 26 inches. Authorities from Maryland to Maine said it would take days to restore electricity.

More than 800,000 people were without electricity in Connecticut alone. Massachusetts had more than 670,000 power cuts and New Jersey more than 600,000. Parts of Pennsylvania, New Hampshire, New York, Maine, Maryland and Vermont also were without power.

Saturday was only the fourth snow-bound October day in New York’s Central Park since records began 135 years ago.