Russia 'has entered Ukrainian airspace in past 24 hours'

Russian aircraft have entered Ukrainian airspace on several occasions in the past 24 hours, Pentagon spokesman Colonel Steve Warren said today.

Without offering further details he called on Moscow to "take immediate steps to de-escalate the situation."


Cameron offers more Typhoons for Nato air mission

Britain will offer another two Typhoon warplanes to patrol the skies of eastern Europe amid continuing tensions with Russia over the Ukraine cris, David Cameron has said.