The four were taken out of the rubble at Chenani, about 90 km from here, and taken to a hospital in Udhampur.
The tunnel is part of a four-lane road widening project of the Jammu-Srinagar highway. The reason for the collapse was not known.
Jammu: Four workers were injured Friday when a portion of a tunnel under construction crumbled in Jammu and Kashmir, police said.
First Published: Friday, January 25, 2013, 18:42