The Brazilian government has met to reassess security measures ahead of next month's Olympic Games in Rio de Janeiro.
The review follows the attack in the French city of Nice on 14 July which left at least 84 people dead.
A lorry has struck a crowd after Bastille Day celebrations in the southern French city of Nice, killing at least 80 people and injuring dozens, officials say.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
US President Barack Obama has urged police, and black communities to come together, saying it should not be "us versus them",
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
A court in the Netherlands has sentenced a man to 30 days in jail for insulting the king on Facebook.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
New Prime Minister Theresa May will continue to form her new government later - as she begins her first full day in Downing Street.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
A Chinese businessman who pleaded guilty to hacking sensitive military information has been sentenced to nearly four years in prison in the US.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
A news agency linked to so-called Islamic State has confirmed the death of key leader Omar Shishani, who the US said it killed in March.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
A Zimbabwean pastor who was briefly detained after organising a nationwide strike last week has called on people to keep protesting.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).
Police in the US state of Arizona say a single suspect may be responsible for a series of shootings that have left seven people dead.
Witnesses said it was heard across most of the city about 01:25 local time on Monday (20:55 GMT Sunday).