A suicide bomber has attacked near the security services building in the city of Aktobe in northwest Kazakhstan, killing himself and wounding at least three others.
A spokesman for the prosecutor's office, Zhandos Umiraliyev, said Tuesday the bombing outside the National Service Committee building was carried out by 25-year-old Rakhimzhan Makatov, who was a suspected criminal.
The motive for the bombing is unclear, and a criminal investigation has been opened.
The bombing was an unusual event in Kazakhstan, a majority Muslim nation considered to be the most stable country in the volatile Central Asia region.
Some information for this report was provided by AP, AFP and Reuters.