Poland's conservative Law and Justice party won a landslide in Sunday's general election on anti-refugee rhetoric and welfare promises, ending eight years of centrist rule in a victory that risks inflaming tensions with the EU and Russia.

The euroskeptic PiS led by Jaroslaw Kaczynski garnered an outright majority, according to projections from partial results by local television channels, ousting leftist parties from parliament for the first time since the fall of communism in 1989.

The driver of a car that barreled into a parade-watching crowd in Oklahoma, killing four people and injuring dozens more, has been charged with four counts of second-degree murder, police said Sunday.

Those come in addition to a previous charge of driving under the influence for Adacia Avery Chambers, 25, said Kyle Gibbs, police captain in the town of Stillwater.

Seven suspected Islamic State militants and two Turkish police officers were killed on Monday in a fierce gun battle in the main city in the Kurdish-majority southeast, security sources said.

The shootout in Diyarbakir erupted just six days ahead of elections in Turkey, with tensions running high following the country's worst ever bomb attack and a resurgence of the conflict with Kurdistan Workers' Party (PKK) rebels.

Argentina's presidential election is headed for a November 22 runoff between incumbent Cristina Kirchner's chosen successor Daniel Scioli and conservative rival Mauricio Macri, partial results indicated Monday.

The two candidates were neck-and-neck with around 35 percent each, with just over 86 percent of polling stations reporting -- though results were still pouring in from Scioli's stronghold, Buenos Aires province, where he has served as governor for the past eight years.

North and South Korean families divided since the Korean War said a tearful final farewell Monday, wrapping up a rare reunion that was clouded at the last by a maritime border spat.

After three emotionally fraught days seeking to redress more than 60 years of separation, the reunion ended on the most traumatic note of all -- a goodbye that for most of the elderly participants marked the last time they will ever see each other.

At the age of just 14, Afghan rights activist Aziza Rahimzada has already surmounted legal hurdles preventing 25,000 refugee children from attending school, and cajoled authorities into providing tap water to a camp housing more than 100 families.

Now she has been nominated for the International Children's Peace Prize -- an award previously won by Malala Yousafzai -- and, like her Pakistani counterpart, hopes to spread her message of universal education and fundamental rights for Afghanistan's youth.

Polling stations closed in Haiti Sunday after high turnout and without major incidents, raising hopes for stabilization in the desperately poor country gripped by a long-running political crisis.

Haiti's 5.8 million voters were asked to cast their votes for the first round of presidential elections, the second round of legislative voting and polls for local officials.

Poland's conservative Law and Justice (PiS) party led by euroskeptic Jaroslaw Kaczynski won an absolute majority in general elections on Sunday, public broadcaster TVP projected, a victory ending eight years of centrist rule. 

An exit poll showed the PiS picked up 242 out of 460 seats in the lower house of parliament, ousting the governing Civic Platform (PO) liberals who had 133 seats.

A Venezuelan prosecutor says he has fled the country with his family, accusing the leftist government of using "false evidence" to convict jailed opposition leader Leopoldo Lopez.

Franklin Nieves made the accusations in a video posted Saturday on YouTube, in a blow to the leftist government of President Nicolas Maduro just weeks before crucial December 6 legislative elections.

Pro-Russian insurgents in Ukraine's eastern separatist Donetsk region said Sunday they had banned Doctors Without Borders (MSF) from working in the area for alleged espionage activity and other crimes.

Medics with the Nobel Peace Prize winning organization were kicked out of the war-torn province along with nine other Western aid groups for unspecified reasons this week.