Moscow says NATO continues to bear responsibility for the security situation in Afghanistan, even though the UN-mandated international security force ended its mission on December 28.
Russia's special envoy for Afghanistan, Zamir Kabulov, has warned of "Islamists" in Afghanistan concentrating along the Tajik and Turkmen borders.
An Iranian official says Tehran is considering new restrictions for thousands of Afghans seeking to reside in Iran.
Iranian authorities have agreed to allow the children of illegal Afghan immigrants to attend Iranian schools and universities.
Police in southern India said on December 13 that they have arrested a man who has admitted to handling a popular Twitter account supporting the Islamic State (IS) militant group.
Facing economic woes at home and a tense confrontation with the West, Russian President Vladimir Putin is set to meet Indian leaders during a visit that is expected to produce deals on nuclear power and defense.
The head of Russia's state nuclear company said a deal would be signed on December 11 for the construction of at least 12 more reactors for Indian nuclear power plants.
Militants have attacked an Indian army camp in disputed Kashmir, killing at least 10 Indian security personnel.
U.S. Special Representative for Afghanistan and Pakistan Dan Feldman is to travel to Europe next week.
The three men were hanged publicly in front of the family of the slain prosecutor and residents of Zabol, a town in Iran's southeastern province of Sistan-Baluchistan.