New Delhi, Nov. 13 -- A San Francisco train driver who allegedly "fell asleep at the wheel" triggered panic on board after a packed light-rail coach lurched violently while exiting a tunnel, according to newly surfaced CCTV footage.

The incident occurred around 8.37 am on 24 September, when a San Francisco Municipal Transportation Agency (SFMTA) operator - later found to be fatigued - appeared to momentarily doze off at the controls. The train, travelling at nearly 80kmph (50mph), jolted sharply while navigating a curve, sending several commuters stumbling into walls and onto the floor, The Independent reported.

The train sped past its scheduled stop before halting abruptly a short distance ahead. No derailment or injuries were reported...