NEW : A note sent with the bombs mentions a protester killed in Greece , state-run media says . An anarchist group claims responsibility for the bombings at the Swiss , Chilean embassies . The Greek government is investigating whether it was an act of terrorism or sabotage by anarchists who were protesting against austerity measures and corruption in their country. Other parcel bombs were addressed to European targets including the leaders of Germany and Italy . Two people were injured , one seriously , in the blasts , according to police .
NEW : A note sent with the bombs mentions a protester killed in Greece , state-run media says . An anarchist group claims responsibility for the bombings at the Swiss , Chilean embassies . The Greek government is investigating whether it was an act of terrorism or sabotage by anarchists who were protesting against austerity measures and corruption in their country. Two people were injured , one seriously , in the blasts , according to police .