Members of the police’s bomb disposal squad on Wednesday conducted a controlled explosion on a suspicious package sent to the Athens Court of First Instance.

Experts were called in to Building 6 of the court complex to dispose of the package, which bore the address of the Athens Bar Association.

According to police sources, the device comprised a battery, cables, a detonating trigger and a small quantity of explosives, and had been put in a package labelled “Freedom to Costas Sakkas,” a reference to an anarchist detained in pre-trial custody for two-and-a-half years due to his suspected links to the guerrilla group Conspiracy of the Cells of Fire.

A court ruling last week called for Sakkas – who went on hunger strike last month to protest his prolonged detention – to be released on bail.

Police said the package did not resemble one addressed to the former head of the force’s counter-terrorism service, Dimitris Horianopoulos, and intercepted earlier this month.