CHENNAI: Three more persons have been arrested in connection with BSP leader K Armstrong's killing, police said on Sunday.
The arrested were identified as 21-year-old N Vijayakumar, V Mukilan (32) and N Vignesh, aged 27 years, police said.
They were produced before a local court on Sunday and remanded to 15 days custody. The latest arrest takes the number of persons under police custody in the high-profile murder case to 20.
K Thiruvengadam, an accused in the case, was shot dead on July 14 by police.
Following his arrest, Thiruvengadam was taken to a spot in the city, as part of the investigation to recover weapons. A key accused in the case, he allegedly opened fire at police personnel and attempted to flee from their custody. Police had said that in an act of self-defence, they fired at him and he was dead.
On July 5, Armstrong, the state president of the Bahujan Samaj Party was hacked to death here by a gang and the murder led to widespread outrage.
Opposition parties, including the AIADMK, alleged there has been a deterioration of law and order in the state. AIADMK general secretary Edappadi K Palaniswami had batted for a CBI investigation into the Armstrong murder case.
BSP supremo and former Chief Minister of Uttar Pradesh, Mayawati, among many other leaders, had also made a similar plea.