Three more persons including a woman advocate have been arrested in connection with the Bahujan Samaj Party Tamil Nadu chief K Armstrong’s murder case, police said on Thursday.

The arrest on Wednesday was made based on the confessions of those already in police custody and phone calls and financial transactions, a senior police official said.

Eleven people have already been arrested in the case and of them a prime suspect, Thiruvengadam, was gunned down on July 14 after he attacked police and attempted to flee when he was taken to a spot to recover the weapons that were used to kill Armstrong.

The BSP president was hacked to death by a bike-borne gang near his under-construction house here on July 5.

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