Immigration lawyer Andrew Tingley says that new rules requiring foreign nationals from outside the EU to have a biometric residents permit had left the IT system unable to cope.
It was close to collapse a few weeks ago. It has now collapsed. It's an absolute mess
More top news
Here is what we know about the disappearance of 16-year-old Becky Watts.
A skydiver who suffered a seizure while falling at nearly 9,000 ft has revealed that he has no memory of the incident.
A new portrait of the Queen that will appear on coins has been revealed.