Greek Prime Minister Alexis Tsipras said on Monday all European states needed to pull their weight to deal with a growing migrant crisis, calling on better assistance from the European Union to countries taking in the biggest influx. "Greece is a first reception country, and Europe has unfortunately not taken steps to protect reception countries from a (migration) wave which has taken on uncontrolled dimensions," he said as he assumed his duties from Vassiliki Thanou, the country's caretaker prime minister for the past month. "There is a need ...that Europe deal with a global, a European problem and share the responsibility among all member states," Tsipras said.