NEW : Gang targets police station where Arnoldo Lazaro Cardenas was being held . Attacks were reprisals for capture of member of Notimex news gang . Series of coordinated attacks in 2 cities kills 2 federal officers , at least eight soldiers . Officials call the coordinated attacks an unprecedented onslaught by drug gangs .
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 .