Mark Clattenburg, who lives in Newcastle, was suspended amid allegations relating to debts of companies connected to him.

Northumbria Police said officers were investigating an incident in which a corrosive substance was poured on Mr Clattenburg's black Porsche Boxster.

Earlier this week he appeared in court over an alleged £5,000 debt.

The suspension, by the Football Association and referees' body Professional Game Match Officials Ltd, meant Mr Clattenburg was unable to take charge of last weekend's FA Community Shield clash between Manchester United and Portsmouth.