Ukraine round-up: Putin watches nuclear tests and a row over a superyacht
Russia has carried out its annual nuclear exercises, with its President Vladimir Putin watching them via video link from a big white room at the Kremlin.
His government announced that ballistic and cruise missiles were launched in the Far East and Arctic.
While the US was informed of the drills, they come at a time of heightened tensions with the West over his his invasion of Ukraine.
Without providing any evidence, Russia has accused Ukraine of plotting to use a "dirty bomb" - an explosive device mixed with radioactive material. Western countries have widely rejected those allegations as false, and Ukraine has warned that Moscow itself could be preparing such an attack.
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