A CBI team probing incidents of post-results violence in Cooch Behar arrested seven Trinamul workers on Sunday night in connection with a murder of a BJP worker in Dinhata.

In the past 24 hours, it was the second round of arrests. Early on Sunday, the central team arrested four BJP workers for alleged involvement in the murder of a Trinamul worker.

Sources said on Sunday night, CBI sleuths had called seven Trinamul workers for interrogation in connection with the May 3 murder of BJP’s Haradhan Roy. Later, all seven were arrested. On Monday, they were produced at a Dinhata court, which ordered two days of CBI custody.

On Monday, the CBI in Birbhum arrested one Dilip Mirdha, 30, for his alleged involvement in post-results violence where a BJP worker of Illambazar was reportedly killed on the night of May 2, when poll results came out. The CBI was tight-lipped on Mirdha’s political affiliation.

He was produced before a Bolpur court and sent to four days of CBI custody.