Subway car

Gunman shoots 10 in New York subway after setting off smoke bomb, manhunt underway

It has prompted fresh vows by officials for measures to reverse a surge in violence in the city's transit system.

Five of those shot were in critical but stable condition, and six others were injured by shrapnel from bullets and other sources, as well as a panicked crush of people fleeing the carriage as it quickly filled up with smoke, officials said. Some riders collapsed to the ground as they poured on to the platform in Brooklyn's Sunset Park neighbourhood.