A van bomb exploded outside the Athens Stock Exchange Wednesday, lightly injuring a woman and causing extensive damage to the building, nearby car dealerships and cars, Greek police said.
A second, smaller bomb outside a government building in the northern city of Thessaloniki caused only minor damage.
Both attacks were preceded by anonymous warning calls to Greek media, but there was no claim of responsibility. Police said a Greek far-left militant group called Revolutionary Struggle, best known for firing a rocket at the US embassy in Athens in 2007, was suspected in the stock exchange blast.
"The methodology points to Revolutionary Struggle," police spokesman Panayiotis Stathis said.