"Greek ex-prime minister hurt as letter bomb explodes in car"

"There was no immediate claim of responsibility for the attack, but Greek politicians have been targeted in the past by militant far-left and anarchist groups."

"Tensions rise in Chios [Greece] as refugee camp comes under suspected far-right attack with Molotov bombs and massive stones"

AJ:

The latest large-scale attack happened on Thursday evening, when outsiders standing on top of the ruins hurled Molotov bombs and giant rocks directly into the refugees' tents, aid groups and solidarity workers told Al Jazeera.

...

According to UNHCR, there are roughly 2,000 refugees currently stuck in Chios - 60 percent Syrians, 20 percent Iraqis, 10 percent North Africans and 10 percent other nationalities.