Three communist insurgents were killed Tuesday when police fought off an attack on their remote station in the southern Philippines, officials said.

About a hundred New People's Army (NPA) rebels attacked the police station in the rural town of President Roxas in Cotabato province on Mindanao island, said regional police spokesman Senior Inspector Aldrin Gonzales.

Ukraine said Tuesday that Russian troops had moved away from the border, just five days before the country's make-or-break presidential poll, but stopped short of confirming a full withdrawal as demanded by the West.

Moscow had announced it was pulling back its forces in a move that has the potential to deflate a bloody Kremlin-backed insurgency threatening to tear the ex-Soviet nation apart.

A knife-wielding attacker went on a rampage at a Chinese primary school on Tuesday, wounding eight schoolchildren with one seriously hurt, state media reported.

The 35-year-old suspect, a man surnamed Chen, rushed into the school in Macheng in the central province of Hubei and began slashing at students with a kitchen knife, the official Xinhua news agency reported, citing the local government.

At least five people were killed and 45 injured on Tuesday after parts of a freight train derailed and collided with a passenger train south of Moscow, officials said.

Fifteen of the injured were in serious condition, the emergencies ministry said.

Taliban gunmen have kidnapped a Chinese tourist in northwest Pakistan, close to the militant-infested tribal areas, officials and an insurgent commander said Tuesday.

The man is the latest foreigner to be seized by militants in Pakistan. At least five others are known to be currently captive, including the elderly U.S. aid worker Warren Weinstein, held since August 2011.

At least 10,000 people have been driven from their homes since the start of the Ukraine crisis, with Crimean Tatars the hardest-hit, the U.N. refugee agency said Tuesday.

Crimea's Muslim Tatars, generally seen as pro-Kiev, have fled the southern peninsula in their thousands since a separatist referendum that led Russia to annex the province.

About 1,000 people Tuesday marked Cambodia's annual "Day of Anger" against the genocidal former Khmer Rouge regime, with black-clad students wielding hoes and bamboo sticks to mimic their crimes in the late 1970s.

The crowd, including monks and children, watched the re-enactment at the Choeung Ek "Killing Fields" on the outskirts of Phnom Penh, the site of mass graves for victims of the 1975-79 fanatical Maoist regime.

A bomb scare at the main airport in Cyprus forced its evacuation on Tuesday, police said, only a day before U.S. Vice President Joe Biden visits the Mediterranean island.

Police said they evacuated hundreds of passengers and staff from Larnaca International Airport at about 9:00 am (0600 GMT) after it received a phone call from someone saying a bomb had been planted there.

India's prime minister-elect Narendra Modi, making his first visit to parliament since his election triumph, choked back tears Tuesday as he urged party colleagues to dedicate themselves to serving the nation.

The 63-year-old leader bowed and kissed the steps of the building as he entered for a meeting of his Hindu nationalist Bharatiya Janata Party and its political allies, which elected him as leader in the national parliament.

Fighting between government and militia forces erupted in a city in Sudan's Darfur on Tuesday, killing four and ending an uneasy calm after the region's worst unrest in a decade, sources said.

"They are fighting inside El Fasher town -- heavy fighting," one resident told Agence France Presse by telephone, adding he could not identify the combatants, although some were in uniform.