Joseph Muscat has been accused of shieling close associates from the investigation into the murder of Daphne Caruana Galizia.
We look back at some of the issues plaguing European politicians this week.
Centre-right MEPs have torn into Muscat over rule of law in Malta and his administration's alleged links to the murder of journalist Daphne Caruana Galizia.
Maria Efimova was Daphne Caruana Galizia's source. The murdered reporter used the Panama Papers to expose alleged links to offshore tax havens of Malta’s leadership, including the island’s Prime Minister
Ten people have now been detained over the anti-corruption blogger's murder