Britain celebrates as Queen turns 90

Attired in a light green outfit, Queen Elizabeth greeted thousands of well-wishers during a lengthy walkabout near her Windsor Castle home, west London, as she celebrated her 90th birthday on Thursday

PM David Cameron paid tributes to the UK’s longest-serving monarch, calling her a “Rock of strength” for the country and the Commonwealth. Parliament was lit up overnight in the red, white and blue of the Union Jack

Prince Charles, the Queen’s heir, recorded a special birthday message for his mother in which he read an edited passage from William Shakespeare's Henry VIII for radio broadcast during the day