One dead as nor'easter storm pummels New York and New Jersey

Tens of millions of people across the north-eastern US have found themselves in the path of a powerful weekend storm bringing coastal flooding, power cuts, travel chaos and cancelled stadium events.

The so-called nor'easter brought "dangerous coastal flooding and beach conditions, strong winds and heavy rainfall" to areas including New York City and Boston on Saturday, the US National Weather Service (NWS) said.

States of emergency have been declared in New York and New Jersey, both of which faced a coastal deluge in some areas. Rain and strong winds were forecast from Virginia to Maine.

In Brooklyn, New York City, a man was killed by a falling tree.

The man has been identified as 56-year-old Leighton Brown, an employee of the New York City Housing Authority.

According to local news, he was walking through east Brooklyn neighbourhood working an extra shift when the deadly incident occurred.

"We mourn deeply for the loss of Leighton Brown, a NYCHA employee who faithfully served Brooklyn residents and who was known for his warm personality," the Office of the NYC Public Advocate wrote on social media.

The nor'easter has caused widespread power cuts. More than 160,000 households, nearly all in the north-eastern US, have lost electricity, according to tracker PowerOutage.