According to Israel Radio, the incident was triggered when Judeh took to the podium to speak at a donors conference hosted by the UN.

At their meeting, Netanyahu and Ban discussed the recent tensions in the West Bank and Jerusalem.

German mayor is "not a clear anti-Semite but a confused anti-Semite," says international relations director for the Simon Wiesenthal Center.

“It has been proven again that the wild Palestinian incitement leads to acts of terrorism and murder such as we have seen this evening,” says Netanyahu.

A Palestinian gunman shot dead two Israeli parents in a shooting attack on their vehicle in Samaria, leaving their four children orphaned.

"We cannot expect embassies to be reopened in Tehran and Washington...but we will continue to share information," says Iranian official.

"It's impossible to stand in silence in front of a mother and father who were brutally torn apart from their children," Rivlin says.

The Israeli couple killed were identified as Eitam and Na'ama Henkin from the West Bank settlement of Neria.