KYIV, Oct 15 (Reuters) - Ukraine struck a Russian oil refinery on Thursday after President Volodymyr Zelensky declared that Kyiv was abandoning a ceasefire covering energy sites announced by US President Donald Trump, and criticised Trump's willingness to strike deals with Moscow. The absence of Western intelligence leaves Ukraine more vulnerable to Russian ballistic missiles. Key points and original sources are listed below.

• KYIV, Oct 15 (Reuters) - Ukraine struck a Russian oil refinery on Thursday after President Volodymyr Zelensky declared that Kyiv was abandoning a ceasefire covering energy sites announced by US President Donald Trump, and criticised Trump's willingness to stri...S1

• The absence of Western intelligence leaves Ukraine more vulnerable to Russian ballistic missiles.S2