One person was killed and another injured in a clash over establishing supremacy and due money in Mymensing district on Saturday night.The deceased was identified as Shimul, 28. Bullet-hit injured man named Sohan admitted to Mymensing Medical College Hospital.A tense situation was prevailing in the incident. Additional police were deployed to control untoward situation on the spot.Confirming the matter, Office-in-chage of Kotwali Model Police Station Kamrul Islam told Jagonews24.com that, the situation is now under control. Police have tried to detain the culprits, he added.