Chennai, Jan. 29 -- Five men suspected of allegedly murdering a family of three from Bihar in Chennai were arrested on Wednesday, police officers familiar with the matter said.

The victims were a man, his wife and their two-year-old son, said police.

The men were identified as Sikander (33), Ravindranath(45), Narendra Kumar (45) and R Vikas (24), said a police officer involved in the investigation, adding that the body of the child was found in Madhyakailash area near Adyar on Wednesday. All the accused are also from Bihar.

The father's body was found stuffed into a gunny bag lying on the roadside in Adyar on Monday, added the officer.

Police were yet to establish the motive behind the three murders, added the officer.

Investigators ...