Russia still building forces on Ukraine border, says top Nato official

Nato secretary general contradicts Vladimir Putin's claim of partial' withdrawal, as US official says Russia has increased troops by 7,000

Russia is continuing to send troops to what is now the biggest concentration of forces in Europe since the cold war, contradicting Moscow's claims of a drawdown on Ukraine's border, Nato's secretary general has said.

Hours later a senior US official told reporters that Russia's claims of withdrawal of some troops were false" and that Moscow had increased its troop presence along the Ukrainian border by as many as 7,000 troops", many of them arriving in the past 24 hours.