US President Donald Trump on Monday warned Syria against launching an attack on the country's last rebel stronghold with the help of Russia and Iran, saying the offensive could trigger a "human tragedy."

Russian Foreign Minister Sergei Lavrov warned that Moscow will take reciprocal measures in response to Washington's latest sanctions, in an interview to a Slovak newspaper published on Tuesday.  

Unknown gunmen have shot dead two policemen in Russia's volatile Caucasus in the latest attack against local authorities, police said on Saturday.

Yekaterinburg has escaped its dark past of contract killings and organized crime to become a World Cup host city with a more hopeful future.

South Korean President Moon Jae-in arrived in Russia Thursday ahead of talks with his Russian counterpart Vladimir Putin, which are expected to focus on economic cooperation and the situation in North Korea.

Russian Foreign Minister Sergei Lavrov Thursday called for dialogue between Israel and Iran following Israeli strikes on Iranian targets in Syria that marked a sharp escalation between the two enemies. 

A Moscow court on Friday ruled to block the popular messaging app Telegram in Russia, after it refused to give state security services access to private conversations. 

Moscow on Thursday called on the West to "seriously consider" the consequences of threats against Syria after the U.S. and France said they would respond to an alleged chemical attack. 

The United States, EU members, NATO and other nations across three continents have announced the expulsion of over 150 Russian diplomats in a coordinated action against Moscow which they accuse of poisoning an ex-spy in Britain.

Russia on Friday slammed Britain for encouraging European Union member states to support London over a spy poisoning row after they agreed to recall the bloc's envoy from Moscow for consultations.

In London they "are feverishly trying to force allies to take confrontational steps," Russian Foreign Minister Sergei Lavrov told reporters on a visit to Hanoi, state news agency RIA Novosti reported.