ATHENS -- Greeks hit the streets here again on Monday to protest austerity as Members of Parliament (MPs) were due to vote on the latest omnibus bill legislating on dozens of prior actions required by the country's international creditors to conclude the third program review.

The umbrella labor union of civil servants, ADEDY, which had called for a three-hour stoppage across the public sector services at noon, opened the new round of demonstrations at the parliament.

A 24-hour strike was called for public transport, while dozens of flights were affected by the air traffic controllers' work stoppage.

"We say no to policies harming peoples' interests. We resist, we demand," read banners waved by demonstrators.

Later on Monday, the union representing private sector employees GSEE, the communist party affiliated union PAME, and other labor unions were to stage more protests outside the Greek parliament.

The bill the plenary is debating foresees new cuts to family benefits, restrictions regarding the declaration of strikes, and the introduction of e-auctions for foreclosed properties.