Guatemala's chief prosecutor says she believes a recent threat against her is a reaction by organized crime to her work dismantling corruption networks that has put a former president and vice president behind bars while awaiting trial.

Thelma Aldana says she has "no doubt" that the threat is a "response from organized crime." She singles out the case known as "the line," which is an alleged fraud network involving bribes at the state customs agency.

Former President Otto Perez Molina and his vice president, Roxana Baldetti, are among those facing charges in the case. Both have denied wrongdoing.

Aldana said Tuesday in an interview with The Associated Press that she intends to continue pursuing her prosecutions.