Today's early-morning attack came after Interfax reported the arrest of two more suspects in the murder last week of the family of an ethnic-Russian teacher in Ingushetia.
Three suspects are already being held.
Another Russian teacher and her two children were shot dead in Ingushetia last month.
Officials suspect Islamist extremists in the murders.
(AFP)
RFE/RL Caucasus Report
RFE/RL Caucasus Report
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