A deadly terror attack leaves at least 37 people dead at the Tunisian beach resort of Sousse. Officials say a gunmen posing as a tourist was shot dead by security forces. This comes just three months after militants struck Tunisia's Bardo museum, killing 22 people. Also, Burundi's opposition says it will boycott elections set to begin on Monday. President Pierre Kurunziza's opponents are still outraged by his decision to run for a third consecutive term.