London: British police said in a statement that a small amount of uranium was found in a package that arrived at London's Heathrow Airport on December 29. They added that it did not appear to be connected to any immediate threat. Also Read: "What madness looks like": Russia escalates its attack on Bakhmut According to experts, the quantity of material discovered by routine screening was so small that it posed no threat to the general public, according to Richard Smith, head of the London police's Counter Terrorism Command. Also Read: Pentagon removes COVID-19 vaccination requirement for soldiers It does not appear to be connected to any immediate threat, despite the fact that our investigation is still ongoing, according to what we have learned so far, Smith said. No arrests, according to the police. "We will keep looking into every avenue of inquiry available to make sure that this is unquestionably the case. Also Read: Brazilian judge orders the ex-minister of Bolsonaro to be detained after a riot in Brasilia A request for comment was not answered by Heathrow Airport. Nuclear weapons use uranium as a key component, which can also be used for scientific research and the production of electricity for domestic use. In addition to the metal itself being toxic if ingested or inhaled, some isotopes of that metal emit radiation that may be harmful to humans.