NEW : Gang targets police station where Carlos Rueda Medina was being held . Attacks were retaliation for murder of member of La Familia gang . Series of coordinated attacks in at least eight cities . 3 federal agents , 2 soldiers . Officials call the coordinated attacks an unprecedented attack by drug lords .
NEW : Gang targets police station where Arnoldo Rueda Medina was being held . Attacks were reprisals for capture of member of La Familia gang . Series of coordinated attacks in at least eight cities kills 3 federal officers , 2 soldiers . Officials call the coordinated attacks an unprecedented onslaught by drug gangs .