"We do believe this could be the start of a major, a much larger influx into Jordan," Melissa Fleming, chief spokeswoman of the UN High Commissioner for Refugees (UNHCR), told a news briefing in Geneva.

Overall, 214,120 Syrians have been registered in four neighbouring countries (Jordan, Iraq, Lebanon and Turkey), exceeding the UNHCR'S forecast of 185,000 for this year. It has "revised significantly upward" its projection, Fleming added.