Police in Athens are seeking the perpetrators of a lucrative armed raid last month on a gambling club operating out of a hotel basement in Kefalari, north of Athens, that was only recently reported by the club managers, apparently due to fear of generating bad publicity. The raid, carried out on December 30 by five assailants dressed in black and wielding Kalashnikov assault rifles, netted more than half a million euros, according to police, who said there were no injuries. Officers are investigating the connections of several regular patrons of the club who were arrested in a police raid on the premises a week before the robbery. The raid led to the arrest of eight businessmen from Kavala, Veria and other cities in northern Greece. Police are seeking another businessman, also a regular patron, who was seen leaving the hotel with his bodyguards minutes before the robbery.