At least three activists of Bangladesh Chhatra League (BCL) were injured in a factional clash over internal feud at Kazir Mor area of the city yesterday. The injured were identified as Rakib, 25, Kanon, 22 and Sobuj, 21. Of the injured, Rakib was admitted to Madaripur Sadar Hospital in a critical condition. Sources said rivals attacked each other at around 12:00pm yesterday as a sequel to August 11 clash at Government Nazim Uddin College. Both the factions have been fighting for long for establishing supremacy in the area, locals said.