Britain has since advised against all but essential travel to the area.

We advise against all but essential travel to the remaining Provinces.

We advise against all but essential travel to the rest of the country.

Many countries are advising their citizens against travel to the country.

Britain advises against "all but essential travel to parts" of the country.

There is a high threat of kidnapping in the areas to which we advise against all but essential travel.

We no longer advise against all but essential travel to Tokyo.

We advise against travel by road at night outside the major cities.

We advise against all but essential travel to these areas.

They are not even good for a credit against future travel, as they have been in the past.