Shimon Peres, John Kerry and Mahmoud Abbas at
Shimon Peres, John Kerry and Mahmoud Abbas atFlash 90

Israeli and Palestinian negotiators met secretly in Jerusalem on Tuesday, a senior Palestinian Authority official said, a week after US-brokered peace talks were relaunched in the Holy City.    

"A meeting was held today between the Palestinian delegation, headed by Saeb Erakat and Mohammad Shtayyeh, and the Israeli delegation of (Justice Minister) Tzipi Livni and Yitzhak Molcho," the official told AFP on condition of anonymity.

Details of the discussions were not revealed, apparently consistent with a request from Washington last week for a strict news blackout. The official added that US Secretary of State Kerry's special envoy Martin Indyk met Palestinian Authority Chairman Mahmoud Abbas on Monday to keep up pressure to continue negotiations "despite continued settlement building, which is the biggest obstacle to talks carrying on."    

Talks held last Wednesday, the fruit of months of intensive US diplomatic efforts to bring the two sides back to the negotiating table after a nearly three-year break, were held under a shroud of secrecy at an undisclosed location in Jerusalem.    

Abbas said all key issues were discussed but declined to elaborate because of the agreed news blackout.    

The Wednesday meetings were overshadowed, however, by a new row over Israeli building plans in Judea, Samaria and Jerusalem.

UN chief Ban Ki-moon told reporters on a visit to the Samarian town of Ramallah that he was "deeply troubled by Israel's continued settlement activity in the West Bank, including east Jerusalem."

"Settlement activity is deepening the Palestinian people's mistrust in the seriousness on the Israeli side towards achieving peace," he continued, declaring that "It will ultimately render a two-state solution impossible."    

But Israel's Prime Minister Benjamin Netanyahu played down the issue at a meeting with Ban later the same day.    

"The root cause (of the conflict) was and remains the persistent refusal to recognize the Jewish state in any boundary," he said.

"It doesn't have to do with the settlements - that's an issue that has to be resolved, but this is not the reason that we have a continual conflict." 

Earlier this month, US Secretary of State John Kerry revealed that - despite their angry reactions to the Israeli announcement to build around 2,000 new housing units in Jewish towns and neighborhoods - both he and PA Chairman Abbas had been made aware of the plans in advance of the relaunching of talks, and had agreed that they did not effect "the peace map" in any way.