Jihadists arrested last year in Lyon were planning to carry out a terrorist attack at a Jewish group’s conference about anti-Semitism, a French newspaper reported.

The five suspects who were arrested in a series of sweeps by French police between Sept. 16 and Sept. 18 were planning to strike on Sept. 18 at an event organized in Lyon by the regional branch of the CRIF umbrella of French Jewish communities and organizations, according to a report Tuesday in the Le Progres daily.

An unnamed police officer who is in charge of the investigation confirmed to the daily that the suspects were arrested following the interception of a Sept. 5 telephone conversation in which they discussed their plans.

Source: The Jewish Daily Forward