Events took place across the world this week to mark 22 years since the beginning of the Rwandan genocide, which lead to the deaths of over 800,000 Tutsis and moderate Hutus.

Rwandan President Paul Kagame lit the Flame of Remembrance at the Kigali Memorial Centre this week, to mark 100 days of mourning for the victims of the genocide. See pictures from the ceremony here.

Also see accounts from genocide survivors, compiled by the United Nations, here.

US President Barack Obama released a statement to mark the occasion, stating,

“We honor not just the victims but also those who risked their lives to save others as well as the survivors who carry the memories of these atrocities. On this solemn day, we remind ourselves of our common humanity and shared commitment to protecting civilians and ensuring that mass atrocities of this magnitude never happen again.”

Myanmar's new government on Friday began the process of releasing political prisoners, after Aung San Suu Kyi said the release would be the government's first priority.

Sixty-five were released on Friday, including 40 students. More releases are expected.

During the country's five decades of military rule, dissidents were frequently jailed.

Sudan’s President Omar al-Bashir has expressed his intention to step down from his presidency when his mandate ends in 2020, reports the BBC.

Icelandic Prime Minister Sigmundur Gunnlaugsson has resigned after the Panama Papers showed he owned an off-shore company with his wife, which he did not declare.

Mr Gunnlaugsson seemed unrepentant in the face of accusations that he concealed millions of dollars' worth of assets and denied any wrong doing, however pressure had been building since the revelations.

Thousands of people protested outside the parliament building in the Reykjavik on Monday and opposition parties tabled a no-confidence motion.

Read more here.

The revelation, described as the biggest leak in history, linked to 12 current of former heads of state, including Iceland’s prime minister, who has faced street protests calling on him to resign. Amongst the 140 politicians from more than 50 countries revealed in the leak, were more than 60 relatives and associates of politicians.

The International Criminal Court has dismissed a war crimes case against Kenyan Deputy President William Ruto, ruling that there was insufficient evidence.

The court refused to acquit one of the most senior political leaders to stand trial in The Hague, with one judge declaring it a mistrial because of a "troubling incidence of witness interference and intolerable political meddling".

Mr Ruto denied the charges of murder, deportation and persecution, which occurred following the 2007 elections in which about 1,200 people were killed.

In February the ICC banned the use of recanted witness testimony, an enormous advantage to Mr Ruto as many key witnesses changed their statements, suspected to be due to intimidation.

China on Tuesday announced trade restrictions with North Korea, following nuclear tests earlier this year by Pyongyang.

Banning jet fuel exportation, gold and certain coal imports, China's sanctions are now in line with that of the UN.

Last month the UN Security Council voted to increase sanctions on North Korea.

A massive leak of documents from Panamanian law firm Mossack Fonseca has revealed how powerful politicians and businessmen from across the world have used secret tax havens to launder money, avoid sanctions and dodge tax laws.

The revelation, described as the biggest leak in history, linked to 12 current of former heads of state, including Iceland’s prime minister, who has faced street protests calling on him to resign. Amongst the 140 politicians from more than 50 countries revealed in the leak, were more than 60 relatives and associates of politicians.

Individuals or companies who are subject to sanctions, including those based in Iran, Zimbabwe, Syria and North Korea, were also customers of the law firm.

The Irish Times produced an interactive map which also showed three companies based in Sri Lanka, with a total of 22 shareholders. A full list of companies and individuals associated with them is set to be released in early May.

Human rights lawyer Geoffrey Robertson QC told the BBC that offshore tax havens allow “vast numbers of wealthy people to hide their wealth”.

Kenya's Vice-President William Ruto is due to find out whether a crimes against humanity case against him at the International Criminal Court (ICC) will be heard.

Mr Ruto denies murder, deportation and persecution charges during violence that followed the 2007 elections in which about 1,200 people were killed. His lawyers demand that the case be terminated due to a lack of evidence.

Indian police officers involved in the killing of 10 Sikh pilgrims in 1991 have been sentenced to life by a court in Lucknow.

The forty-seven policemen were found guilty of staging a "fake encounter", a term used to describe a planned extrajudicial killing. They lied that the Sikh men were militants and armed.

The Turkish president Tayyip Erdogan on Monday vowed to finish off the conflict with the Kurdistan Workers Party (PKK) after ruling out peace talks.

"We said 'resolution process', and they deceived us, their word cannot be trusted. That's over now, we are going to finish this off," Mr Erdogan was quoted by Reuters as saying in an interview aired on TRT,

The Azeri government announced a unilateral ceasefire on Sunday, after clashes erupted with Armenian forces in Nagorno-Karabakh, however reports indicate that the violence continued.

"Azerbaijan, showing goodwill, has decided to unilaterally cease hostilities," Azerbbaijan's defence ministry said in a statement, warning that it would retaliate if its forces were attacked.

Catalan's leader, Carles Puigdemont, on Monday ruled out any declaration of independence during his mandate, reported AFP.

Mr Puigdemont, who was elected to power in January on a pro-independence platform said however the party would do all the work needed for independence.

Dozen of people have been killed in clashes between Azerbaijan and Armenia in two disputed Caucasus region of Nagorna-Karabakh.

Armenia said 16 ethnic-Armenia soldiers had died in the fighting, among the worst in two decades., reports the BBC.

Israel on Sunday extended the distance it permits Gaza fishermen to head out to sea along certain parts of the coastline which is currently controlled by Hamas militants.

Palestinians have frequently complained of Israeli interceptions and arrests of fishermen who stray from the fishing zone.