MULUGU: A 55-year-old man was killed while his son sustained injuries when an improvised explosive device exploded in the Kongala forest area of Wazeedu mandal on Monday. According to Wazeedu police, the deceased, I Yesu, and his son Ramesh along with three other villagers were going to the Kongala forest to collect firewood. However, Yesu stepped on an IED planted …