Justin Bieber cancels remainder of Justice world tour

Justin Bieber has cancelled the remaining dates on his Justice world tour following ongoing health issues.

The Canadian singer has been forced to postpone the world tour several times already amid his ongoing recovery from Ramsay Hunt syndrome (RHS).

The rare condition had resulted in complete paralysis of the right side of his face in June, forcing Bieber to cancel performances.

RHS is caused by viral reactivation and causes facial palsy, or facial paralysis as it is known in the US.

A post on the tour's official Twitter page confirmed the rest of the dates on the tour - including several in the US, Australia and Europe - would be cancelled.

Over the past year the tour has amassed over $65m (£46m) in revenue, though fans have expressed their dismay online that they have still not received previously promised refunds.

He announced a return to touring in July but postponed shows again in September in order to "make my health a priority".

At the time, Bieber said shows in Europe had "taken a real toll on me" and he needed more time to "rest and get better".

What is Ramsay Hunt syndrome?

Ramsay Hunt syndrome is a complication of the shingles virus which can emerge in people who have suffered chicken pox as a child.

The NHS says it is caused by a virus in the facial nerve.

Possible symptoms include blisters in the ears and on the roof of the mouth, as well as facial weakness.

It can be treated with steroids, antiviral medication and facial rehabilitation.