"At present, the investigation has applications of missing relatives filed by four citizens. The applicants claim that their relatives could have been in the car that exploded," said a source close to the investigation.
The source said the final number of the victims of the terrorist act would be determined after a legal and genetic examination of the remains has been conducted.
"After comparing the DNA of the applicants with the DNA of the bodies of those killed, the exact number of passengers killed in the explosion will become known," said the source.
As of Wednesday afternoon, 38 of the 39 people killed in the blast were identified.
Body parts found at the scene show that that there were about 50 killed, Mayor Yuri Luzhkov of Moscow said yesterday.