Ukraine In 48 Hour Ultimatum To East's Pro Russia Activists

Arsen Avakov said the situation would "be resolved in 48 hours" either way

Earlier a number of people held inside a state security building in Luhansk since Sunday were freed

The E.U. , Russia , U.S. and Ukraine  are to meet next week in the first four way meeting since the crisis errupted , the talks are aimed at breaking the impasse since Russia annexed the Southern Ukrainian peninsula of crimea in February 

Russian troops are now massed along the borders of the two countries

Mr. Avakov said an " anti terrorist operation" was under way in the regions of Luhansk , Donetsk and Kharkiv and would be concluded within tthe next two days , he told journalists  "there are two options, political and negotiations and force" " for those who want dialogue , we propose talks and a political solution , for the minority who want conflict they will get a forceful answer from the Ukrainian authorities" 

Shortly before he spoke , Ukraine's security service said 56 people held inside it's Luhansk offices had been allowed to leave following two rounds of negotiations with local politicians

On Tuesday it said " radicals" were armed and holding 60 people against their will , it's not clear exactly how many people remain in the building 

During a rally outside the building overnight , speakers condemned the interim leadership in Kiev and repeated their call for a referendum 

Ukraine's authorities zaid on Tuesday they had retaken control of the government building in Kharkin but protesters remain in control of the regional authority building in Donetsk

Kiev and it's allies accuse Moscow of fomenting unrest in the mainly Russian speaking East of the country as a pretext to possibly seizing more territory , a claim strongly refuted by Russia