Police ammunition was found in the middle of a busy London road after an armed response unit accidentally left it on the roof of their vehicle before driving off.
The ammo "and ancillary items" were spotted on the carriageway of the eastbound A13 near Plaistow, Newham, just after 10am on Tuesday morning.
Police were called to the scene and parts of the road were closed for more than 11 hours.
Scotland Yard said there was "no danger" to the public from the fallen ammunition. The force apologised for any disruption experienced by commuters.
“Enquiries established that the items were police issue and that they had been placed on the roof of an armed response vehicle and subsequently fell off when officers were responding to support other colleagues on a firearms operation", they said.
“The Met’s Directorate of Professional Standards has been informed and have established that this was human error and the officer concerned has been spoken to and will be subject to an internal learning process.
“The Met apologises for any disruption caused to those travelling on the A13 and thanks them for their cooperation during the closure.”
