A Russian man facing assault charges detonated three grenades in a court building in western Siberia, killing himself and one other person.
Police say Mikhail Vdovin was scheduled to face trial on assault charges in the court in the city of Kurgan on November 1.
They say he detonated three grenades inside the court building after court bailiffs, concerned over his aggressive behavior, blocked his way to a courtroom.
One of the bailiffs, 30-year-old Mikhail Malinnikov, was killed at the scene.
The attacker sustained serious injuries and died later in the hospital.
Two visitors to the court were injured.
Kurgan police spokeswoman Tatyana Geil told journalists that the attacker's motive remains unknown.
Based on reporting by RIA Novosti, Interfax, and ITAR-TASS