Vandals throw paint over RAF Bomber Command Memorial in London's Green Park
Vandals have thrown paint over the RAF Bomber Command Memorial - the tribute to more than 55,000 personnel who died in its service during the Second World War.
The imposing statue of aircrew surrounded by several poppy wreaths was left splattered with white paint after the fourth attack in six years.
"This is the worst example of vandalism we have seen at the memorial and it is utterly heartbreaking to see the memory of all those brave airmen disrespected in this way," said David Murray, head of the RAF Benevolent Fund charity.
"This despicable act took just moments but will take considerable time and resources to put right."
The memorial is in London's Green Park and was unveiled by the Queen in 2012, but has been repeatedly vandalised.