Facebook founder and CEO Mark Zuckerberg told U.S. lawmakers that the company is fighting an "arms race" against Russia-sponsored groups trying to use the social network to manipulate elections and public opinion.
Police in Bosnia-Herzegovina have arrested two men suspected of being members of the Islamic State (IS) extremist group.
Hundreds of farmers have demonstrated in the Iranian city of Isfahan over the lack of water available to irrigate their fields.
Moldova's Constitutional Court has ruled that polygraph tests may continue as part of job interviews for managers of a top anticorruption body but their results should not be the determining factor.
Russian hospital personnel will be prosecuted for the "horrific" death of a patient who was mistakenly injected with formaldehyde, which is used to embalm corpses, an official says.
Authorities in Tajikistan have lodged a formal request for Turkey to extradite two Tajik opposition politicians who were detained in Istanbul on March 19.
U.S. President Donald Trump has canceled a scheduled trip to South America later this week as Washington considers military action against Syria over an alleged chemical attack.
Some 1,500 people have gathered in the southern Serbian city of Nis to protest against the planned transfer of ownership of the Constantine the Great airport from the city to the state.
Lawmakers in the town of Volokolamsk, near Moscow, have decided to hold a referendum on the future of a garbage dump that has been emitting toxic fumes and prompting protests by residents.
German Chancellor Angela Merkel has said that a new natural-gas pipeline linking Russia with Germany cannot go ahead without clarity on Ukraine's role as a gas transit route.
Authoritarian leader Alyaksandr Lukashenka has dangled the prospect of decreasing the ample powers of the president in Belarus, but suggested that such a change should not be expected in the near future.
Ukrainian law enforcement officers have searched the home and office of lawmaker Nadia Savchenko, who is in jail pending trial on charges of plotting a terrorist attack on parliament with grenades and automatic weapons.