Palestinian President Mahmoud Abbas has arrived in Turkey for a two-day visit for talks on Middle East peace efforts as tensions mount over Israel"s approval of four new apartment buildings in disputed east Jerusalem, AP reported. The Turkish President"s office says Abbas is to meet President Abdullah Gul and Prime Minister Recep Tayyip Erdogan on Wednesday to discuss U.S. efforts to restart peace talks. The Palestinians claim east Jerusalem for a future capital and demand all construction there stop before negotiations resume. The latest project is being developed in the heart of a predominantly Arab area of the city. It is potentially even more contentious than others because it is not in any of the established Jewish neighborhoods.