London ? Prosecutors filed charges Thursday against three people who allegedly conspired with suicide bombers in the attacks that killed 52 subway and bus passengers July 7, 2005, in London.

For the first time, authorities alleged that the plot’s targets may have included London tourist attractions.

The three, who were arrested last month, are from the same area of West Yorkshire, England, as three of the four suicide bombers.

Those charged were Moham-med Shakil, 30, of Beeston, a suburb of Leeds; Sadeer Saleem, 26, of Beeston; and Waheed Ali, 23, who recently lived in London but was formerly from Beeston.

A court appearance for the men is scheduled for Saturday.

The three were formally charged with conspiring between Nov. 1, 2004, and June 29, 2005, to cause explosions on London’s transport network “and/or tourist attractions in London of a nature likely to endanger life or cause serious injury.”