Ukraine Forces Move On Pro Russia Rebel Held Sloviansk

Ukraine's interior minister said one helecopter pilot had been killed and other people wounded  by anti aircraft missile fire from Pro Russian rebels

The city is a stronghold for Pro Russian separatists who are exerting increasing control in the region

News agencies report gunfire explosions and a military helecopter firing on the outskirts , Russia's state run T.V. Rossiya 24 channel earlier said the city was being "stormed"

On Wednesday , Russia's foreign ministry warned that any storming would have "catastrophic consequences"

Earlier Ukraine's acting President Olexandr Turchynov reinstated military conscription to deal with deteriorating security in the East of the country , the move , announced in a decree , came as Pro Russia militants seized the regional prosecutor's office in the city of Donetsk , an industrial hub where a number of government offices have been seized in recent weeks

They forced their way into the building , stripped weapons and sheilds from police officers and raised the flag of the self proclaimed Donetsk People's Republic

Ukraine blames Russia for organizing the seizures of a number of offices in the East , a claim Moscow denies

Mr. Turchynov said his forces were "helpless" to quell the unrest in some parts of the East , saying the goal was now to prevent it from spreading he also said Ukraine was on "full combat alert" amid fears that Russian troops could invade

Eastern Ukraine has a large Russian speaking population and was a stronghold for former President Viktor Yanukovych before he was overthrown by Pro Western protesters in February

The crisis has plunged East/West relations to their lowest point since the Cold War , on Thursday German Chancellor Angela Merkel asked Russis in a phone call to President Vladimir Putin to help facilatate the release of foreign monitors held in Eastern Ukraine

The military observers were seized by Pro Russia separatists at a checkpoint in the flashpoint town of Sloviansk last Friday

For his part Mr. Putin reiterated his call for Kiev to withdraw troops from the South East to open the way for a national dialogue

Mrs. Merkel is due to meet U.S. President Baracck Obama in Washington Friday to discuss the crisis in Ukraine