Aleksandar Vucic, one of Europe’s longest-serving leaders, resigned as president, paving the way for him to become prime minister after elections next month. Aleksandar Vucic has resigned as Serbia's president to make it possible for him to be named prime minister if his party win the next election. Key points and original sources are listed below.

• Aleksandar Vucic, one of Europe’s longest-serving leaders, resigned as president, paving the way for him to become prime minister after elections next month.S1

• Aleksandar Vucic has resigned as Serbia's president to make it possible for him to be named prime minister if his party win the next election.S2