MOSCOW, Nov. 8 (UPI) -- Four people inside a Russian bookmaker's office were injured early Thursday when a grenade thrown by an attacker blew up outside, Moscow police say.
Among those hurt was the bookie's administrator, RIA Novosti reported.
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The attacker, who was not identified, tossed the grenade at security guards about 2 a.m. local time when they wouldn't let him in the office, police said.
The attacker was reportedly drunk.
Three of the victims were hospitalized in serious condition. A fourth person was treated at the scene for minor injuries.
