In a joint statement, the defence ministers of Estonia, Latvia, Lithuania and Poland said since signing the Ottawa Treaty, threats from Moscow and its ally Belarus have "significantly increased". It is "paramount" to give their troops "flexibility and freedom of choice" to defend Nato's eastern flank, they said.

NATO members Poland, Lithuania, Latvia and Estonia plan to withdraw from the Ottawa convention banning anti-personnel landmines due to the military threat from their neighbour Russia, the four countries said on Tuesday.

Poland and the Baltic states on Tuesday took a first step towards quitting a treaty banning anti-personnel mines, citing an increased security risk from Russia following its invasion of Ukraine.