Clashes broke out in Athens on Thursday (16 March) during a general strike called across Greece in response to last month’s rail disaster.
At least 57 people were killed and dozens more were injured in a head-on collision between two trains on 28 February.
Rolling walkouts and protests have taken place across Greece in the weeks since, with petrol bombs launched at a police cordon near parliament on Thursday.
Riot police responded with tear gas and stun grenades during the brief flare-up of violence that disrupted largely peaceful demonstrations.
There were no immediate reports of injuries or arrests.
