The police rounded up three more Rashtriya Swayamsevak Sangh (RSS) workers in connection with the murder of Social Democratic Party of India (SDPI) worker A. Subair at Elappully in the district.
Subair was hacked to death by a gang while he was returning home with his father after Juma prayers on Friday last.
Sources said Aramughan from Kambrath Challa, Saravanan from Kallepulli, and Ramesh from Elappully were in police custody. They were being questioned.