**Gunmen have raided a bank in Baghdad killing eight people and seizing a large amount of money, say reports.**All those killed were security guards at the state-owned Rafidain bank in Karrada district, local police said.
Earlier this week, three people were killed in a raid on a money exchange office in Baghdad.
Iraqi security officials say such crimes are often linked to the armed insurgency against American and Iraqi security forces.
One official told the Associated Press the attackers appeared to have used silencer-equipped weapons, as witnesses did not report hearing gunfire.