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
Tuesday: After a bright start, rain will gradually push northeastwards across England and Wales with strong winds developing.
Britain should have a second vote on the terms of exiting the EU if it can secure a new deal to control its borders, Jeremy Hunt has said.
Complaints have been lodged with the chairman of the 1922 committee over the neutrality of government whips.