The BBC writes that a man was being searched at the station when he pulled out a gun and shot the officer and himself.
A 23-year-old man who was already under arrest is suspected of the assault. He too was taken to hospital because of a gunshot wound. His motive is still unclear.
Officers did not shoot themselves, police emphasize. British police officers don’t usually carry firearms either.
It is the first time since 2012 in the UK that a cop has been violently killed, reports The Daily Mail.
“This is a shocking incident in which one of our colleagues lost his life in the most tragic circumstances. My heart goes out to his family, close colleagues and friends ”, police commissioner Cressida Dick reports.