Greek police fired tear gas and pepper spray at protesting pensioners who challenged a cordon near the office of Prime Minister Alexis Tsipras, whose left-wing government faces mounting pressure over planned austerity measures.
More than a thousand people, some of them with canes, took part in Monday's rally. Protesters chanted "Shame on you, shame on you!" with one group of elderly demonstrators trying to tip over a riot police bus, triggering the police response.
Protesters ran, with one gray-haired man falling to his knees and coughing and several others appearing to be in distress.
No arrests or injuries were reported. In response to opposition party...