A man was killed and five more injured during a clash among supporters of Awami League-backed and rebel candidates of Bera Union Parishad election in Pabna district on Saturday night.The deceased was identified as Gahar Mondol, son of one Pashan Mondol of Khayerbagan village.The injured people were admitted to Bera Upazila Health Complex.Pabna additional Police Super Siddiqur Rahman confirmed the matter.