Eiffel Tower in Paris turns off its lights in mark of respect to #Westminster terror attack https://t.co/86W3BGGHr0 pic.twitter.com/KPI72eq4wM

— BBC Breaking News (@BBCBreaking) March 22, 2017

PC Keith Palmer was killed doing his duty – protecting our city and our democracy from those who want to destroy our way of life. pic.twitter.com/p6igkEJoGY

— Sadiq Khan (@SadiqKhan) March 22, 2017

I've known Keith for 25 years. We served together in the Royal Artillery before he became a copper. A lovely man, a friend. I'm heartbroken. https://t.co/LgF4rQ7Vmg

— James Cleverly🇬🇧 (@JamesCleverly) March 22, 2017