A Palestinian was killed on Friday when Israeli troops opened fire at him in an area near the border in the northern Gaza Strip, medical sources said.

Ashraf al-Qudra, a spokesman for Gaza's emergency services, confirmed a man in his early 20s was shot dead by troops near the border, but said they had not yet been able to retrieve his body.

A U.S. cyber war against Iran's nuclear program may have only just begun and could escalate with explosions triggered by digital sabotage, experts say.

Although the Iranian regime remains vulnerable to more cyber-attacks in the aftermath of the "Stuxnet" worm that disrupted its uranium enrichment work, Tehran may be receiving help from Russian proxies for its digital security, some analysts say.

Israeli border police killed a man and wounded another when the two tried to cross the Egyptian border into Israel, the army said on Friday, with a security source saying the two were unarmed Gazans.

"Overnight, Israeli border police identified two suspects infiltrating Israel through the Israel-Egypt border," an army spokesman said.

An Israeli man living in New York has been sentenced to 30 months in prison for buying kidneys illegally off Israelis and selling them on for $120,000 and more a time to U.S. recipients.

Levy Izhak Rosenbaum, 61, located individuals in Israel willing to be paid for their kidneys and arranged their travel and accommodation in the United States, where hospitals were given a fake story making it appear the kidneys had been donated.

Israeli aid groups are working with Western organizations to provide humanitarian aid to Syrian refugees in Turkey and Jordan, MP Ayoob Kara told Agence France Presse on Thursday.

Israel poisoned the late Yasser Arafat with the lethal radioactive substance polonium, a nephew of the veteran Palestinian leader alleged on Thursday.

"We accuse Israel of killing Yasser Arafat by poisoning him with that lethal substance," Nasser al-Qidwa told Agence France Presse, referring to polonium, traces of which were recently found on clothing worn by the ailing leader.

A Palestinian militant from the ruling Hamas movement was killed and two others wounded on Thursday in an Israeli air strike on eastern Gaza City, medics said.

The attack targeted a training ground used by Hamas' armed wing, the Ezzedine al-Qassam Brigades, in the southeastern Zeitoun neighborhood of the city, they said.

Israeli President Shimon Peres has warned of the demographic consequences on the Jewish state of ongoing settlement in the occupied West Bank.

"Israeli settlements in densely populated Arab areas could bring about a demographic change about which we would do well to think hard about before acting," he said in remarks broadcast on both army radio and Israel public radio.

Israeli troops crossed the barbed wire fence in the Wazzani area at dawn Wednesday and stayed at the river’s eastern bank for several hours before withdrawing to Israeli territories, the National News Agency reported.

NNA said an 11-member patrol crossed the fence at around 3:00 am and remained until 7:30 am near the area of al-Muntazahat.

An Israeli court acquitted former prime minister Ehud Olmert on two key corruption charges on Tuesday while finding him guilty on a lesser charge, media reported.

The Jerusalem district court cleared Olmert on charges of receiving cash-stuffed envelopes and falsely billing trips abroad multiple times, but convicted him on the charge of granting favors to a former colleague during his time as a minister.