Addition to my last post.

Six policemen were killed and two injured in a bomb blast in Ingushetia on March 5. Russian news agencies, citing republican Interior Ministry sources, reported that the blast took place near the entrance to the village of Surkhakhi after law-enforcement officers discovered a roadside bomb consisting of an artillery shell and a detonator near a cemetery and bomb disposal experts were sent in. Itar-Tass reported that the device was detonated by remote control and went off as the bomb disposal experts began working to defuse it.
http://www.jamestown.org/single/?no_...ash=d17d621723