MIAMI (AP) — Federal prosecutors stung twice by deadlocked juries said Wednesday they will make a third attempt to convict six men accused of scheming with al-Qaida to topple Chicago's Sears Tower and bomb FBI offices in several cities.

The decision was announced at a hearing before U.S. District Judge Joan Lenard, who declared a mistrial last week in the second trial because jurors could not agree on any verdicts. The first trial in the "Liberty City Seven" case ended the same way in December, except that a seventh defendant was acquitted.