Alexander Litvinenko, a former Russian spy, was poisoned with a lethal dose of polonium-210 in London in 2006. The case gained international attention due to the unique and highly toxic nature of the poison used. The investigation into Litvinenko's death concluded that he was poisoned by two Russian agents acting on the orders of their superiors. Despite the British government's accusations, Russia has denied any involvement and refused to extradite the suspects. The poisoning has been widely condemned and resulted in strained diplomatic relations between the United Kingdom and Russia. Litvinenko's death remains a prominent and controversial case of political assassination in recent history, highlighting the geopolitical tensions between the two countries.
