BIRATNAGAR: A teenager was killed after getting squashed in a thresher machine last night in Morang. Sandeep Mandal (16) of Mukti Chok in Pathari Sanischare-7 was killed in the accident, said Eastern Regional Police Office, Biratnagar. He was setting up a thresher machine at a paddy field of a local villager when the tragedy happened, police said.