There [are] no barrel bombs, we don't have barrels."[2] Nevertheless, there is considerable video, pictorial, and after the fact proof of the use of such weapons in Syria.[31] Video evidence of a barrel bomb being used was recovered from a mobile phone found in the wreckage of a crashed government forces helicopter in May 2015. British Foreign Secretary Philip Hammond said, "This video footage exposes Assad's lies on barrel bombs", and "We will bring those involved in these criminal acts to justice".[32]