US Secretary of State John Kerry postponed his scheduled trip to the Middle East this week, without announcing a new date, Israeli radio reported on Monday. Kerry was supposed to visit the region on Tuesday to hold meetings with the Israeli and the Palestinian sides in order to find a platform for launching negotiations, the radio noted. Kerry attempted to find a negotiation medium between the two sides during his previous four visits to the region. Also, Kerry requested a timetable, which was expired days ago, to find a new formula for launching the peace negotiations, but failed to convince Netanyahu\'s government to stop the settlement construction. Lately, Kerry warned of against stalling negotiations, which could be the final chance for reviving peace between the two sides, added the radio.