Okay, perhaps that is a tad melodramatic, but all flights into and from the UK 's airports have been stopped until at least 7pm tonight, due to the drifting clouds of volcanic ash resulting from the recent eruptions of an Icelandic volcano.
Full details here
This is such an unusual development.
Photos of the eruption can be seen here
If you have a burning need to access the UK today, you can still do so by the Channel tunnel or by boat :-)