VITSEBSK, Belarus -- A plainclothes policeman is stationed at the building that houses the apartments in the eastern Belarusian city of Vitsebsk of two of the alleged Minsk subway bombers, RFE/RL's Belarus Service reports.
The police officer told RFE/RL that the surveillance is intended to protect the suspects' relatives.
The bomb attack in the Minsk subway on April 11 killed 13 and injured more than 150 others, of whom 142 remain in hospital.
Although authorities arrested four men and one woman from Vitsebsk as suspects on April 13, neither their names nor their pictures have been made public.
Online sources in Belarus have identified two of the suspects as Dzmitry Kanavalau and Ulad Kavalyou, both of whom reportedly live on Vitsebsk's Repin Street.
Kavalyou's mother refused to talk about her son to RFE/RL, but said the Belarusian media "has been stirring up dirt without giving anything close to the truth."
Belarusian officials announced on April 18 that the five people apprehended thus far will be officially charged on April 23.
Officials have announced that two of those detained have confessed to the bombing attack as well as to similar attacks in 2008 and 2005.Read more in Belarusian here