One of Britain's leading tour operators, Thomas Cook, has joined a growing push for changes to the way tourists receive security warnings.
Police are appealing for information on the whereabouts of two girls from north London who have not been since last night.
Starr Stephenson-Peck, 12 and Samina Abdul, 13, were last seen at around 9.15pm in Sydney Road with the junction of Roman Road, Muswell Hill.
Starr from Muswell Hill, is described as black, of medium build, around 5ft 10ins and has black hair.
Samina, of Barnet, is also a black female of medium build with black hair extensions which are braided.
Anyone with information on the whereabouts of the two friends is asked to contact police.
As the financial crisis deepens in Greece, traders are finding that normal business has all but dried up.
With people queuing outside banks desperately trying to access their savings, the standoff between the country's government and international creditors continues.
ITV News Europe Editor James Mates talked to one shop owner who says that all his customers have gone and no money is changing hands.