Donald Trump's tweeted to say he won't be attending the annual White House Correspondents' Dinner this spring.

The event which draws celebrities, politicians and journalists usually features a witty speech by the US president - and this move breaks with tradition.

The last President not to attend was Ronald Reagan who was recovering from an assassination attempt - but he still phoned in to give some advice - "when somebody tells you to get in a car quick, do it."

Mr Trump hasn't said why he's giving it a miss, but his relationship with the media has been turbulent recently.