Manuel Valls told French parliament said keeping Greece in euro and EU "is something of the utmost geostrategic and geopolitical importance".
French prime minister's decision to attend the canonisation of former popes John XXIII and John Paul II has caused concerns among some MPs.
Government to ease language skills requirements and streamline paperwork for granting citizenship to reverse fall in number of naturalisations.
Manuel Valls is once again at the centre of controversy after calling France's immigration policy and its relationship to Islam into question.
Former socialist prime minister of France, Manuel Valls, 55, has told Spanish media that he is mulling becoming a candidate in mayoral elections next year in Barcelona, where he was born, when he would run as representative of Spain's centre-right Ciudadanos party which is opposed to Catalan independence.
Sea search starts as Greek aviation source says plane flying from Paris to Cairo crashed around 130 nautical miles off the island of Karpathos.
Manuel Valls said the money would be used to finance infrastucture and long-term construction which would be 'useful' to the population.
French Prime Minister Manuel Valls, 54, has announced his resignation in order to stand in primary elections to choose his Socialist Party's candidate for next spring's presidential elections, following President François Hollande's decision last week not to stand.
Formerly interior minister, Cazeneuve, 53, takes over as prime minister from Manuel Valls who on Monday resigned in order to launch his bid to become socialist candidate in presidential elections next spring.
Manuel Valls described as 'cretin' by historian for comments about Marianne, a symbol of the French Republic, as burkini ban row continues.
