Police in Athens said they have arrested four people today after uncovering a plot to send parcel bombs to French president Nicolas Sarkozy and three foreign embassies in the Greek capital. Police said one of the four people arrested was a suspected member of an obscure group – Conspiracy of Fire Nuclei that specialises in arson attacks on offices and homes of politicians. One of the packages, addressed to Mexico's embassy in Athens, ignited as it was being sorted in the headquarters of the courier company, slightly injuring a female employee.