* Sees 2014 revenue growth of at least 1 percent, OIBDA flat
* Targets cut from 3-5 pct revenue growth, 2 pct OIBDA growth
* Expects recession, fighting in Ukraine to hurt results (Adds quotes, details)
By Anastasia Teterevleva
MOSCOW, Aug 20 (Reuters) - Russia's biggest mobile phone operator MTS cut full-year sales and core profit forecasts on Wednesday, citing instability in Ukraine, its second-biggest market.
"While in Russia we still expect revenue growth at the upper end of our 4-5 percent range, the impact of the situation in Ukraine will limit the group's revenue growth to at least 1 percent for 2014," MTS Chief Executive Andrei Dubovskov told reporters.
MTS cut its revenue growth target from an earlier 3-5 percent range. It said it now expects operating income before depreciation and amortisation to be flat year-on-year, having previously forecast a 2 percent rise.
Dubovskov said second-quarter sales in hryvnia terms increased in Ukraine, where pro-Russian rebels are fighting government forces in the east, but he expected falls in future.
He said the Ukrainian unit's results would be hurt by the economic decline, rising unemployment, a weakening hryvnia, as well as the suspension of services in Crimea after it was annexed by Moscow in March and network disruptions in the east.
The company said earlier that MTS-Ukraine, the second-biggest operator in the former Soviet republic after Vimpelcom Ltd's Kyivstar, was unable to service clients in Crimea.
The Ukraine crisis weighed on MTS consolidated results in the second quarter with total sales rising by just 1.4 percent, year-on-year to 98.9 billion roubles ($2.7 billion). Analysts had forecast a 1.7 percent increase.
Revenue in Russia alone rose 4.5 percent to 90.4 billion roubles, driven by data services, the company said.
"We are not seeing any difficulties in our main, Russian market," said Dubovskov.
MTS also reported a fall in profits for the second quarter, mainly because of a one-off $320 million gain it booked a year earlier in connection with the settlement of a dispute in the former Soviet republic of Kyrgyzstan.
Its quarterly OIBDA fell 2.6 percent to 43.2 billion roubles, which was still in line expectations. Core profit was also hit by the hryvnia's devaluation. Net profit fell 27 percent to 21 billion roubles, above a 17.5 billion forecast.
MTS, controlled by oil-to-telecoms conglomerate Sistema , confirmed investment plans and its dividend policy. (1 US dollar = 36.2620 Russian rouble) (Writing by Maria Kiselyova; editing by David Clarke)