Thousands take to streets in Greece in protest over 2008 shooting of teenager

Police tactics again in spotlight after shooting of Romany boy on eve of annual march for Alexis Grigoropoulos

Thousands of people have joined protests in Athens, Thessaloniki and other Greek cities to commemorate the fatal police shooting of a teenager, hours after violence erupted over a similar incident in the north of the country.

Police estimated more than 11,000 protesters had joined protests on Tuesday amid fears of renewed clashes as a Romany boy, shot in the head by an officer, fought for his life.