New York City

Torrential downpours have flooded roads, disrupted subway services and led to flight delays across the New York tri-state area.

The number of first responders who have died from 9/11-related illnesses is now equal to those who lost their lives on the day of the terrorist attacks.

A further pair of two-year-old boys and an eight-month-old girl were also left ill by exposure to opioids.