India, July 6 -- Baruipur in West Bengal's South 24 Parganas remained tense on Monday as police arrested three people, examined crucial CCTV footage and intensified their hunt for another suspect a day after the alleged rape and murder of a minor girl triggered violent protests and the lynching of a youth suspected of involvement in the crime.

CCTV footage showing one of the accused walking with the minor victim shortly before her alleged rape and murder has emerged as a crucial lead in the investigation.

The footage allegedly captures Prabhas Mondal, who was arrested on Sunday, accompanying the girl towards the area where the crime is believed to have taken place.

Investigators are closely examining the video, which reportedly helped ...