A European Union proposal to find spaces for 120,000 refugees will not work unless reception facilities are provided for tens of thousands at any time, the U.N. refugee agency said on Tuesday. "A relocation programme alone, at this stage in the crisis, will not be enough to stabilise the situation," UNHCR spokeswoman Melissa Fleming said. UNHCR was no longer expecting a mandatory quota of relocation spaces allocated between EU countries, which it had hoped for, but urged EU leaders to back the 120,000 places as an emergency response, on top of 40,000 places for refugees who have arrived in Greece and Italy.