A four-member Trinamool Congress delegation Sunday met the family members of the five people killed by suspected militants in Tinsukia district of Assam, and demanded that the perpetrators of "hate crimes" be immediately brought to book.

Led by Derek O'Brien, the TMC parliamentary party leader in Rajya Sabha, the team comprises Lok Sabha MP Mamata Bala Thakur, Rajya Sabha MP Nadimul Haq and MLA Mahua Moitra, which went to Kheronibari village in the district to meet the family members.