By ELENA BECATOROSATHENS, Greece (AP) â¿¿ Greek doctors, port workers and public transport staff in the country's capital walked off the job Thursday in strikes against deeply unpopular austerity measures that have seen incomes slashed as the country struggles to emerge from a deep financial crisis. Hundreds of protesters gathered at separate demonstrations, with port workers rallying in Greece's main port of Piraeus and about 500 public hospital workers chanting slogans outside the Health Ministry in central Athens. One of the demonstrators, Tassos Antonopoulos, a member of the Greek Federation of Public Hospital Workers, said it wasn't just medical staff who were suffering because of the cuts. "People have less and more expensive options," he said. "It is not possible for the citizens of this country, at a time when they are suffering from this situation and the crisis in the country, to not find the care that they deserve in the public hospitals." The strikes left Athens without buses, suburban rail and trolleys for the day, while Greek islands will be without ferry services for two days. With doctors and ambulance workers also on strike, public hospitals were functioning with emergency staff only on Thursday. The capital's subway system was running, however, as its workers were still under a civil mobilization order after the government invoked rare emergency powers last week to end an eight-day metro strike. The civil servants' union declared a three-hour work stoppage at all public services from noon in solidarity, shutting down other services such as post offices. Greece has been gripped by a severe financial crisis since late 2009 and is being kept afloat by billions of euros in rescue loans from other eurozone countries and the International Monetary Fund. In return, the government has imposed wave upon wave of spending cuts and tax hikes, leading to severe salary and pension cuts and leaving unemployment spiraling to above 26 percent. Many of those still employed have not received paychecks in months.