Here are some of the stories we're covering from around the world:

Portugal’s Prime Minister Resigns Unexpectedly

Prime Minister António Costa of Portugal resigned unexpectedly on Tuesday, hours after the police raided government buildings as part of an inquiry into corruption and “influence peddling” and issued an arrest warrant for Mr. Costa’s chief of staff.

Ukraine Investigates Birthday Explosion That Killed Military Aide

Ukrainian prosecutors announced on Tuesday that they had opened an investigation into a bizarre explosion at a birthday celebration that killed an aide to Ukraine’s top military commander, in what the authorities portrayed as a tragic accident.

Brazil Cracks Down on Surprising New Threat: Neo-Nazis

The Brazilian government has raided neo-Nazi groups across 10 states this year, part of a push by the new Lula administration to prosecute far-right extremists.

@nytimes