Federal prosecutors plan to seek an indictment in their case against an airport worker accused in a suicide bomb plot in Kansas.

The government told a magistrate judge last week that the case against Terry Lee Loewen would be presented Wednesday to a federal grand jury for indictment.

The 58-year-old avionics technician was initially charged Friday in a criminal complaint with attempting to use a weapon of mass destruction, attempting to damage property and attempting to provide support to terrorist group al-Qaida.

Prosecutors must now show their probable cause evidence either at the secret grand jury proceeding or the public preliminary hearing tentatively scheduled for Friday. Most federal prosecutions are charged by indictment.

An indictment will make the preliminary hearing unnecessary, although Loewen still has a detention hearing on Friday.