GUWAHATI, India (AP) — Authorities recovered the bodies of the remaining 13 workers trapped inside a collapsed hydropower tunnel in India, taking the death toll to 25 as authorities ended the rescue operations on Thursday.

Multiple agencies had made sustained and coordinated rescue efforts in the four days since a gas explosion ripped through the tunnel. Following the recovery of all the missing employees, teams carried out a final inspection of the tunnel, the state government of Sikkim said in a statement.