Ukraine imposed sanctions on former president and opposition politician Petro Poroshenko, including an asset freeze and a ban on withdrawing capital from the country, for what the domestic spy agency said on Thursday were "national security" reasons.

Ukraine has announced sanctions on former president Petro Poroshenko and four other oligarchs and political figures accused of undermining national security, including a close ally of Russian President Vladimir Putin.

President Volodymyr Zelensky on Thursday signed off on sanctions against former Ukrainian President Petro Poroshenko and other prominent Russia-leaning officials.

Ukraine's National Security and Defence Council imposed sanctions on former President Petro Poroshenko, a presidential decree published on Thursday said.

Ukraine has imposed sanctions on former president Petro Poroshenko, citing national security concerns. The move has sparked political debate, with accusations against President Zelenskiy of political motivations.

(Reuters) - Former President Petro Poroshenko said on Wednesday that Ukraine’s National Security and Defence Council had adopted sanctions against him, and he accused current President Volodymyr Zelenskiy of undermining national unity.

Former President Petro Poroshenko said on Wednesday that Ukraine’s National Security and Defence Council had adopted sanctions against him, and he accused political rival President Volodymyr Zelenskiy of being behind the move.