Libya air strikes cause US alarm - in 15 seconds
26 August 2014 Last updated at 14:47 BST
US officials say Egypt and the UAE were behind air strikes in Libya last week.
A senior US official told the BBC that Washington was not consulted about the attacks and was "caught off-guard". The strikes failed to stop Islamist-linked forces from Misrata and other cities seizing the airport from a militia from Zintan that had controlled it since 2011.
Here is the story in 15 seconds.