Athens  - Two policemen were shot and seriously wounded by unknown attackers in central Athens, reports said Friday.

It was not clear whether the shooting of the two policemen, who were on duty in a suburb in central Athens, was politically motivated.

In January, another officer was seriously wounded by a gunshot wounded inflicted while guarding Greece's minister of culture, weeks after the killing of a teenager by police.

Athens  - Flights to and from Greece were to be grounded for several hours and vessels were to remain anchored Thursday during a nationwide 24-hour strike to protest against the government's economic polices.

Under the slogan "employees should not pay for the crisis," the walkout was the second nationwide protest against the conservative government since riots broke out in December, triggered by the country's bleak economy and police shooting of a teenager.

Athens  - Air transport across Greece is set to be paralyzed and vessels will remain anchored at ports on Thursday after workers called a nationwide 24-hour strike to protest against the government's economic polices.

Air traffic controllers said they will walk off the job from 12 pm until 4 pm (0900 GMT until 1300 GMT), forcing the cancellation of dozens of international and domestic flights as part of a nationwide strike called by the country's private sector federation GSEE and public sector union ADEDY.

Athens - Unknown assailants attacked the offices of two deputy ministers and four politicians using petrol bombs and gas cannisters on Tuesday.

Reports said the attacks against the offices of the deputy ministers to interior and culture caused minor damage and no injuries. Details of the attacks on the four politicians' offices were not available.

The attack occurred shortly after unknown assailants attacked five bank branches on Tuesday.

Athens  - Unknown assailants attacked banks and a yacht dealership in Athens using petrol bombs and gas cannisters on Monday, causing serious damage but no injuries in the latest violence to rock the Greek capital.

Reports said a fire broke out at the site of the yacht dealership, destroying the building and more than 20 vessels which were on display.

During Earth Hour on Saturday, administrative and public houses, archaeological sites and a large number of homes all through Greece turned off their lights as a part of a worldwide initiative to emphasize the risk of climatic change.

The majority of Greeks joined the rest of the world in the global event started by the World Wildlife Fund (WWF) to dim nonessential lights from 8:30 p.m. to 9:30 p.m.

Around 4,000 cities and towns in 88 countries and regions joined the glabal event.