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Ukraine army helicopter 'shot down' despite ceasefire Ukraine army helicopter 'shot down' despite ceasefire
(35 minutes later)
A Ukrainian military helicopter has been shot down by pro-Russian rebels in the east, with casualties feared, the Ukrainian military says.A Ukrainian military helicopter has been shot down by pro-Russian rebels in the east, with casualties feared, the Ukrainian military says.
It says the Mi-8 helicopter used for transporting military cargo was hit shortly after take-off near the rebel-held city of Sloviansk. It says the Mi-8 helicopter used for transporting military cargo was hit by a rocket shortly after take-off near the rebel-held city of Sloviansk.
Reports say nine people were on board. Reports say all nine people on board were killed.
The news comes a day after the separatists said they would observe a ceasefire until Friday, responding to the unilateral truce declared by Kiev. This comes a day after the rebels vowed to observe a ceasefire until Friday, in response to a peace plan by Kiev.
The rebels - who are continuing to hold a number of towns in the Donetsk and Luhansk regions - have not publicly commented on the claims by the Ukrainian military.
Before Tuesday, the rebels had shot down at least two Ukrainian army helicopters and a plane.
'Practical step'
In a separate development on Tuesday, Russian President Vladimir Putin asked parliament to revoke the right of military intervention in Ukraine.
The move was aimed at "normalising the situation" in the eastern regions of Ukraine, Mr Putin's press-secretary said.
The parliament authorised Mr Putin to use force in Ukraine on 1 March.
Ukrainian President Petro Poroshenko said Mr Putin's latest move was a "first practical step" towards settling the crisis in the east. It came after Moscow had officially supported Kiev's peace plan, which involved the week-long ceasefire.
Since March, Moscow has annexed Ukraine's southern Crimea peninsula.
This was achieved with the help of troops without insignia. Despite initial denials, Mr Putin later admitted that they were Russian armed forces.
However, Moscow denies accusations by Kiev that Russian troops are helping and arming the separatists in eastern Ukraine.