This map shows the locations across the South East where suspect packages have been found in the last three days.
The blue markers designate packages that were found on Tuesday, green is for yesterday and the red markers are for today.
More top news
Urban Outfitters has apologised for a 'red-stained' sweater bearing the logo of a US university where four students were shot dead in 1970.
Edinburgh's poet laureate has offered some words of reconciliation as Scotland prepares to vote on independence in just two days' time.
Temperatures will be on the rise in the next few days, with highs of 25C in the sunshine by Thursday, but do not expect clear blue skies.