World

Dozens have been injured in protests in Armenia over what the opposition calls a power grab by a former president.

Serzh Sargsyan has served his maximum two terms in office but has now been sworn in as prime minister.

Al Jazeera's Hannah Hoexter reports.

One family's dominance of Cuban politics since the 1959 communist revolution is coming to an end this week.

President Raul Castro, 86, will be handing over power for the first time in six decades to a Cuban who does not carry his last name.

A successor to President Raul Castro will be chosen on Wednesday.

Al Jazeera's Latin America editor Lucia Newman reports from Havana.

North Korea's nuclear weapons programme topped the agenda of a meeting between US President Donald Trump and Japan's Prime Minister Shinzo Abe.

Japan's leader met the US president at Trump's Mar-a-Lago resort in Florida.

The two leaders are also set to discuss trade issues during their two-day summit.

Al Jazeera's White House Correspondent Kimberly Halkett reports.

A new framework for negotiations to end the war in Yemen will be presented to the United Nations Security Council within the next two months.

That is the assurance of the new UN Special Envoy on Yemen, Martin Griffiths who was appointed in February.

He also briefed the council for the first time about the humanitarian crisis in the country, where eight million people face famine.

Al Jazeera's Mike Hanna reports from the United Nations.

Slovakia's national police chief says he is going to step down following weeks of public pressure and protests over the murder of a journalist.

This is the third major resignation of top officials and politicians in Slovakia after investigative reporter Yan Kutsiak and his fiancee were shot dead in February.

Al Jazeera's Jonah Hull reports.

A former employee of Cambridge Analytica has been giving evidence to a UK parliamentary committee.

Brittany Kaiser was the director of Program Development at the company.

She discussed Cambridge Analytica's work for current US President Trump's election campaign.

While working for the Trump campaign, she said her role was to target small groups of people, harvest their personal information and attempt to change their political opinions, a practice she did without guilt at the time but had now decided was ''disgraceful''.

Al Jazeera's Laurence Lee reports from London.

Palestinians are marking Prisoners' Day - showing their solidarity with thousands of Palestinians being held in Israeli jails.

There are more than 6,500 Palestinians - including 350 children and more than 60 women - currently in Israeli prisons.

More than 400 are being held without charge or trial under so-called "administrative detention".

According to rights groups, 1,800 prisoners are in need of medical care, and 700 of them suffer from serious and chronic conditions.

Al Jazeera's Harry Fawcett reports from the occupied West Bank.

The lives and livelihoods of two million people in Nigeria are under threat because of a lack of water.

Levels in the Goronyo dam basin, which provides water for farmers, fishermen and families, have dropped dramatically.

In the past year, the water levels have dropped to just 10 percent of its capacity, forcing authorities to ration water to homes.

Al Jazeera's Ahmed Idris reports from Goronyo.

An international team of scientists has engineered an enzyme that eats plastic.

It is a world first in an effort to find a solution for the 300 million tonnes of plastic produced every year.

Al Jazeera's Charlotte Bellis has more.

Clean drinking water is a luxury in Gaza. Waste treatment plants cannot work at full capacity because of electricity and fuel shortages which means sewage is pumped direct into the Mediterranean Sea.

Israel's 10-year blockade on Gaza has been blamed for the crisis.

Al Jazeera's Charles Stratford reports from Gaza.