Three Pakistan cricketers are being questioned again by police over claims mistakes were made on purpose in last week's Test match against England.
Salman Butt, Mohammad Asif and Mohammad Amir have also been charged by the International Cricket Council (ICC).
The trio have been told they can't play while investigations go on.
A newspaper claims Mohammad Amir and Mohammad Asif were told when to bowl no-balls so people involved in the scam could bet on the game and make money.
A no-ball is when a bowler steps over the line behind which a ball should be thrown.
The ICC is in charge of world cricket. Chief executive Haroon Lorgat said: "We will not tolerate corruption in cricket - simple as that.
"It is important, however, that we do not pre-judge the guilt of these three players. That is for the independent tribunal alone to decide."
If found guilty, the cricketers could face a lifetime ban.