West Midlands Police have released CCTV footage of gunmen firing at police officers during the widespread disturbances in Birmingham two weeks ago.
The dramatic footage shows a group of 30 to 40 masked men in Newham who attacked a pub and other buildings late on August 9 and early on August 10.
When police attended the scene, petrol bombs were thrown at a police car. When officers moved forward towards the group eleven shots were fired at police and a helicopter.
Police said that the footage depicts a "concerted and organised attempt to kill or injure police officers".
An investigation into arson with intent to endanger life and attempted murder has been launched.
The police also confirmed that four people have charged and eight arrested over the deaths of three men who were run down and killed on Dudley Road, also during the riots.
Chief Constable Chris Sims said he was releasing the footage so that the public might help with their inquiries:
He said: "Releasing footage that is so disturbing in nature is an unusual step for us as a force, however the potential for serious harm, or worse, in this incident has led us to this decision.
"Eleven shots were fired at unarmed officers to enable disorder to continue, whilst petrol bombs were also thrown at officers who initially attended the scene.
"This footage shows seemingly co-ordinated criminal behaviour with no regard for people's lives, whether it be through the setting of a fire, shooting at unarmed officers or shooting at the police helicopter.
"This investigation is being treated as attempted murder and arson, and I am only thankful that this is not a murder inquiry.
"This was not only police officers' lives that were put at risk, but also members of the public who may have been passing by.
"To date the public reaction to this operation has been overwhelming and we thank people for their continued support."