An Italian centre-left alliance has broken down less than a week after coming together, potentially handing victory to a coalition that includes two far-right parties as the country prepares for general elections in September.
Carlo Calenda, the leader of Azione, a small centrist force that was seen as crucial to giving clout to an alliance led by the centre-left Democratic party (PD), withdrew his support on Sunday after the leader of the PD, Enrico Letta, signed a separate electoral agreement with parties including the radical leftwing group Sinistra Italiana, and Europa Verde, a green party launched last year.