The issue has also been raised at the Turkish parliament with the main opposition party claiming the photographs from the event show the children have been abused.
Officers were responding to a domestic disturbance when they were shot. The incident occurred just weeks after three people were shot dead at a Walmart store in Colorado.
Home Office confirmed it was discussing plan to use "border force special volunteers" to bolster border force, which carries out controls on goods and people entering the UK.
People have been demonstrating against high living costs and unemployment. However, rallies soon turned into calls for the supreme leader, Ayatollah Ali Khamenei, to step down.
The government has been accused of withholding £2.5bn earmarked for charities, much of which is to be recouped from the sale of assets built for the 2012 Olympic Games.
Police searching for missing British pensioner Robin Warde fear he has died after discovering a boat registered in his name unmanned off the coast of the Algarve.
