A foreign citizen from outside of the European Union has left a British hospital with a staggering half-million-pound bill for treatment received last year, reports the Daily Mail.

Coming among the £2 billion a year treatment given to non-EU resident foreigners, the bill is the highest unpaid racked up by a single patient. The Daily Mail reports:

A health tourist has racked up Britain’s biggest ever unpaid NHS bill after leaving a hospital with a debt of more than £530,000.

The unnamed patient, who is from outside the EU, received treatment from a Manchester hospital last year.

Hospital bosses have cited ‘patient confidentiality’ and have not revealed which country they are from, their age or gender.

Read more at the Daily Mail