Sweden's parliament passed a law on Monday allowing authorities to revoke immigrants' residency permits based on bad behaviour, ​such as having unpaid debts, doing undeclared work or ‌links to extremist organisations.

The law, which covers pending permits but also retroactively already granted permits, is part of a wider tightening of immigration ​rules by the right-wing government and its support party, ​the nationalist Sweden Democrats, ahead of a parliamentary election ⁠in September.

The law has been criticised by the opposition and ​human rights advocacy groups as arbitrary because decisions would be taken ​on behaviour that has not been deemed criminal.