Italian PM Renzi tells Putin Russian troops entering Ukraine 'intolerable'

ROME (Reuters) - Russian troops entering Ukraine is "an intolerable escalation" of the crisis there, Italian prime minister Matteo Renzi told Russian President Vladimir Putin by telephone on Thursday.

Ukraine accused Russia of bringing troops into the southeast of the country in support of pro-Moscow separatist rebels. Russia says reports of the presence of Russian military units in Ukraine bear "no relation to reality".