The Polish prime minister said on Tuesday that Russia was seeking to drive a wedge between Warsaw and Kyiv ahead of peace talks, after an outcry over a spectator waving a Ukrainian nationalist flag at a concert in Poland’s national stadium.

Axar.az informs, citing Reuters, many Poles were angered by footage shared on social media which showed an audience member at a concert in the National Stadium in Warsaw on Saturday waving the red and black flag of the Ukrainian Insurgent Army (UPA), a nationalist group Poland says was involved in the 1943-1945 Volhynia massacres of Poles.

However, Prime Minister Donald Tusk told a government meeting that Poles and Ukrainians must not allow themselves to be divided ahead of a crucial summit between US President Donald Trump and his Russian counterpart Vladimir Putin on Friday.

“It’s truly fundamental from the perspective of Polish security that Putin not receive gifts before these talks, and such a gift for Putin would undoubtedly be conflict between Ukrainians and Poles,” Tusk said.

“This is precisely the... goal of Russian agents and Russia’s actions in Poland.”

Warsaw police said they had detained 109 people during the concert by Belarusian rapper Max Korzh for offences ranging from drug possession to assaulting security personnel.

Tusk said that proceedings were underway to deport 63 people following the disturbances at the concert – 57 Ukrainians and six Belarusians.