MADRID, Nov 12 (Reuters) - Spain's Socialists and far-left party Unidas Podemos have reached a preliminary coalition deal in a bid to form government, La Vanguardia newspaper reported.

A source previously told Reuters the two had agreed a deal, without giving details.

The Socialist party (PSOE) has said in a statement that acting Prime Minister Pedro Sanchez and the leader of Unidas Podemos, Pablo Iglesias, will meet at 13h45 (1245 GMT). (Reporting by Jose Elias Rodriguez, Ashifa Kassam, Joanna Joncyzk-Gwyzdala Writing by Jesus Aguado Editing by Ingrid Melander)