(REUTERS) - Tajikistan referee Murtazoev Parviz has been handed a 30-day provisional suspension for attempted match-fixing, the Asian Football Confederation said on Wednesday.

The AFC did not specify which match was targeted but said the investigation was ongoing and Parviz's ban could be extended for a further 20 days.

The AFC said it had written to world governing body Fifa to ask for the suspension to be extended worldwide.