BRUSSELS, Oct 17 (Reuters) - Some European Union foreign ministers on Monday called for new sanctions against Iran if Tehran's involvement in Russia's war on Ukraine is proven. Ukraine has reported a spate of Russian attacks with Iranian-made Shahed-136 drones in recent weeks. "We will look for concrete evidence about the participation (of Iran in the Ukraine war)," Josep Borrell told reporters as he arrived for a meeting of EU foreign ministers in Luxembourg, adding Ukraine's Dmytro Kuleba would take part in the gathering. Additional EU sanctions on Iran will not be limited to blacklisting some individuals should Tehran's involvement in Russia's war on Ukraine be proven, Luxembourg's Foreign Minister Jean Asselborn said. "Then it will be no longer about some individuals to be sanctioned," he told reporters as he arrived for the EU meeting.

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