Flooded streets and subway systems as storms slam US East Coast

Severe storms and flooding hitting areas of the East Coast have prompted a state of emergency across New York and New Jersey.

Video shows rainwater seeping into subway systems and overwhelming roads.

New York Governor Kathy Hochul is urging all resident to "stay vigilant, stay informed, and use caution."

Airports in New York, New Jersey and Philadelphia have reported significant flight delays and cancellations.