The image below show the number of hot food takeaways around secondary school in Newham. The red triangles indicate the location of secondary schools. The dark areas show the highest densities of fast food outlets.
More top news
The Metropolitan Police said the building material was found in the force's former training facilities.
The toddler was seriously injured when one of the cars rolled and trapped him between the vehicles in a private car park
The millionaire winner is one of 10 lucky players from the EuroMillions Mega Friday draw on 28 November.