Amid the grief in Brazil, there is a growing sense of anger over the nightclub fire that killed more than 230 people.
NBC Correspondent Keir Simmons is in Brazil. He says investigators have a long list of safety questions that need answering, including why did the nightclub apparently have only one exit? And did security staff briefly block exits to stop people leaving without paying their drink bills?
More top news
At least two are dead with over a dozen injured after an attack on a teen event. Here is what we know so far.
Aspiring basketball player Stefan Strawder was gunned down as he left a teen night at Club Blu.
The suspect, armed with a gun, was caught on CCTV wearing the fancy dress mask, with a red cap on top.