Labor unions and trade associations have slammed an advertisement by a hotelier based on the Argosaronic island of Aigina, offering roam and board - but no salary - for a chambermaid.

The advertisement, which appeared in newspapers earlier this week, seeks a chambermaid "for voluntary work...in exchange for lodgings and food." It provoked an angry reaction by associations in the tourism sector as well as workers' unions.

The General Confederation of Greek Labor (GSEE) described the advert as "unacceptable" and a "dangerous strategy" and called on employees to immediately report similar cases to the country's labor inspectorate. "In the Greece of crisis, unemployment and unbearable taxes, such behavior by employers should not go unpunished," GSEE's statement said.