Three young men, identified as relatives Avuti Narasimhulu, Jinna Mallesh, and Jinna Mahesh, died late Saturday when their motorcycle collided with an under-construction culvert on National Highway-161B in Sangareddy district. Police are investigating the exact cause of the accident, noting that road widening work was in progress and signage was present. It is unclear if alcohol was a factor. Postmortem examinations are pending.