Greek police say they have defused a parcel bomb that had been sent to the Justice Ministry in Athens.
Police say the package had been intercepted by security officials and had been addressed to the justice minister.
Officials say the package is similar to rigged parcels sent to 14 European leaders and Athens-based embassies in November. The parcels caused no injuries or serious damage.
A trial began last month for members of the militant anarchist group, Conspiracy of Fire Nuclei, which had claimed responsibility for the parcels.
While no one has claimed responsibility for the package discovered Wednesday, police suspect it may be related to the group's ongoing trial.
One of parcels sent in November had been discovered in the offices of German Chancellor Angela Merkel, and another, addressed to Italian Prime Minister Silvio Berlusconi, was intercepted in Italy.
Some information for this report was provided by AP, AFP and Reuters.