A man killed himself while detonating explosives after trying to enter Brazil’s Supreme Court, authorities said Wednesday, in an attack on the political heart of the country that prompted the evacuation of court staff and legislators in the capital Brasilia.

Brazil's Supreme Court was evacuated after two nearby explosions on Wednesday night that left one dead in a square near Congress and the presidential palace, police said, stirring security concerns shortly before the country hosts the G20 summit.

A man with explosives died Wednesday trying to enter Brazil's Supreme Court in what appeared to be a suicide, officials said, days before the country hosts the G20 summit.