India, July 16 -- A 21-year-old construction worker from Jharkhand was killed after a section of the concrete lining inside the Silkyara-Barkot tunnel collapsed in Uttarkashi district during the early hours of Thursday, officials said.

Confirming the incident, Uttarkashi District Magistrate Prashant Arya said the incident occurred at around 2am, nearly 900 metres from the Barkot-side part of the 4.5-km-long tunnel.

"The fatal incident occurred when a heavy section of the tunnel's concrete shotcrete lining fractured and collapsed on the worker," Arya said.

The worker sustained fatal injuries after being struck by the falling debris and died at the site, he added.

Arya said no other workers were trapped in the collapse and the tunnel re...