Seven persons were arrested at Muthupettai by special police teams in connection with a murder case and lethal weapons including country-made explosives was seized from them on Thursday.
The Muthupettai police investigating the murder of Rajesh of Kovilur during February 22 had arrested five persons subsequently and a sixth accused Kannan of Coimbatore last month.
The special teams on Thursday rounded up Chinnadurai, Kombaiyah, Muthu, Veeramani, Nagarajan, Vallimuthu and Isakkimuthu while they were heading for Muthupettai in a car, police sources said.
