athens greece call spain ambassador athens sunday rescind statements greek newspaper suggest athens supportive spanish unity reveal strain european union partner catalan independence drive surprise note comment make ambassador friend ally spain criticise publicly greek government greek foreign ministry say statement eu leaders wary encourage separatists across bloc largely back madrid government deepen political crisis culminate last week catalan parliament vote unilaterally declare region independence spain spanish ambassador greece enrique viguera quote sunday eleftheros typos newspaper say clear assurances support spanish unity greece conservative opposition president prokopis pavlopoulos true prime minister alexis tsipras left-wing government statements issue part greek government absent however european governments warmly support territorial integrity spain government position say saturday greece government spokesman say fully support spain territorial integrity cohesion well initiative restore democratic dialogue framework spain constitution particularly concern situation spain reiterate europe advance unite unilateral action acceptable government spokesman dimitris tzanakopoulos say statement foreign ministry accuse ambassador insult greece constitution suggest country president speak government also say adopt arguments political opposition spain ambassador interfere greece domestic politics call ambassador avoid behave way line diplomatic norms expect proceed rescind unfortunate statements provide greek government necessary explanations ministry say greek government spat spain 's ambassador catalonia