An aerial view of the Karnaphuli Tunnel in Chittagong, Bangladesh /CGTN
Staff work at a checkpoint at the Karnaphuli Tunnel in Chittagong, Bangladesh. /CGTN
Staff work at a monitoring center at the Karnaphuli Tunnel in Chittagong, Bangladesh. /CGTN
Visitors take photos at the Karnaphuli Tunnel in Chittagong, Bangladesh. /CGTN
The first underwater tunnel in Bangladesh and South Asia built by China is expected to be completed this October. Located at the estuary of the Karnaphuli River in the country's second largest city, Chittagong, the tunnel will shorten the travel time for a crossing from one hour to just under 10 minutes.