All the four persons on board an Army helicopter which went missing in Sikkim yesterday are dead. The Army rescue teams after a massive search operation recovered the bodies this morning in the snow clad hills of North Sikkim district. The bodies were recovered in Yume Samdong area from around three thousand meters deep gorge, some thirty two kilometers from Lachung, near the Indo-China border. The high altitude area now lies under a thick blanket of snow and is covered with dense forests. The search operations had to be abandoned due to an inclement weather last evening. The rescue teams, who had succeeded in locating the wreckage of the chopper, resumed their operations in the morning today. The chopper with two Leutinent Colonels-cum-Pilots,one Naib Subedar and one Naik on board had snapped its communication links about an hour after taking off from Sevoke Army base near Siliguri in West Bengal during a routine sortie.