Rebels order weapons pull-back as Ukraine say armor arriving

[News Manager]

By Anton Zverev NIZHNYAYA KRYNKA, Ukraine (Reuters) - Pro-Moscow rebels said they would start to withdraw heavy weapons from the front line in eastern Ukraine on Sunday but the government in Kiev said armored columns had crossed the border from Russia to reinforce the separatists. The Ukrainian military said the rebels were pressing on with attacks on government forces near Mariupol, a port in government hands that is seen as the rebels' next major target.

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