Russia has accused Washington of concealing crimes committed by the Daesh terrorist group in the Iraqi city of Mosul, where a US airstrike last month killed hundreds of civilians.
Negotiators from Syria's government and opposition traded insults on Friday, calling each other "terrorists" and "adolescents" after an eight-day round of peace talks in Geneva.
Two journalists have filed a lawsuit against the US government for being put on a "kill list" during the administration of former president Barack Obama, a list still being used by President Donald Trump's White House.
Iran and the Gulf states, whose contest for power in the Middle East has been tipping toward open confrontation, are quietly trying to repair the damaged relationship as the U.S. takes a more confrontational stance toward Tehran.
Veteran South African anti-apartheid activist Ahmed Kathrada, who was sentenced to life imprisonment alongside Nelson Mandela and went on to be an open critic of President Jacob Zuma, died on Tuesday aged 87.
US President Donald Trump is due to sign an executive order to overturn key parts of the Obama administration's plan to tackle global warming.
The move will undo the Clean Power Plan which required states to slash carbon emissions.
Residents in Mosul were instructed not to leave their homes ahead of airstrikes last week that are reported to have killed more than 150 civilians, Amnesty International has said.
Police detained hundreds of protesters across Russia on Sunday, including opposition leader Alexei Navalny, after thousands took to the streets to demonstrate against corruption and demand the resignation of Prime Minister Dmitry Medvedev.