Fears for Indian workers after Uttarakhand tunnel collapse

The lives of 40 Indian labourers, who have been trapped in a tunnel for more than 72 hours, hang in the balance as authorities try to rescue them. The workers were building the tunnel in northern Uttarakhand state when a part of it caved in due to a landslide on Sunday. State and federal rescue teams have been using a massive drill to push through the debris to reach the men.