The dismembered bodies of a woman and two boys were discovered in two cardboard boxes and four plastic bags in a vacant lot in St. Petersburg, Interfax reported, citing an unidentified police official.
Their remains were discovered Tuesday on Bolshaya Porokhovskaya Ulitsa in the city's Krasnogvardeysky district, the official said. The woman is thought to be the mother of the two boys, who were about four and six years old.
The victims' identity and the circumstances surrounding their murder are being investigated.
The Interior Ministry announced that it has sent two of its detectives to St. Petersburg to assist in the investigation, Interfax reported.