The death toll in the MIG 27 fighter crash in West Bengal's Jalpaiguri district rose to four with three more persons succumbing to their injuries while the black box of the jet was recovered on Sunday. Ranjit Roy, 25, died at the North Bengal Medical College and Hospital in Siliguri today evening while teenager Purnima Rai and ten-year old Latika Roy succumbed to their burn injuries on Saturday evening, Jalpaiguri Chief Medical Officer (Health) Radharan Banik told reporters.