Afghan Defense Ministry spokesman Dawlat Waziri said 37 of the captives were soldiers, another seven were policemen, and the rest were civilians.
A 5.3-magnitude earthquake was felt in Afghanistan and across the border in Pakistan on January 2, but there were no immediate reports of damage or casualties.
Iran has accused regional rival Saudi Arabia of supporting terrorism after the kingdom said it executed a top Shi'ite cleric on terrorism charges on January 2.
Afghanistan and Pakistan are renewing efforts to forge peace in the new year, scheduling a round of talks in Pakistan for January 11.
A gas pipeline leaked in the Zakarpattia region of western Ukraine, but the leak is not affecting consumers, Ukrainian gas transmission system operator Ukrtransgaz reported January 1.
Saudi Arabia has reopened its embassy in Baghdad after a 25-year shutdown, in a sign of thawing relations between the two countries.
Officials say Indian troops killed four gunmen who had entered an Indian air force base near the border with Pakistan and exchanged fire with security forces in the early hours of January 2.
Russian Prime Minister Dmitry Medvedev approved a discount in the price of natural gas for Ukraine to bring Russian gas prices closer to prices in European markets.
Residents of Crimea face several more months of power shortages as Russia appears to have ended a contract with Ukraine to deliver electricity to the peninsula it annexed in 2014.
The U.S.-led coalition against the Islamic State (IS) says it conducted 24 air strikes against the militant group in Iraq, while French jets attacked IS sites in Syria.
Iranian officials are vowing to increase Iran's missile capabilities amid reports from Washington of new sanctions against Tehran for its testing of a ballistic missile in October.
Iraqi forces are extending their control within the central city of Ramadi as they continue to flush out pockets of Islamic State (IS) fighters in the city.