Sharjeel Khan and Khalid Latif, who play in the Pakistan Super League for Islamabad United, have also been provisionally suspended by the PCB after being accused of breaching the organisation's anti-corruption code.

Jamshed, who has represented Pakistan in two Tests and 48 one-day internationals, does not participate in the league and the extent of his involvement is not yet clear.

Three other players - Mohammad Irfan, Zulfiqar Babar and Shazaib Hassan - were questioned by the PCB but have not yet been sanctioned.

Khan and Latif were sent home from the PSL, while Irfan, Barbar and Hassan have all been allowed to continue to play.

The duo have also been issued with showcause notices by the PCB.

The PCB are investigating "an international syndicate which is believed to be attempting to corrupt the PSL" and it is thought it relates to potential spot-fixing, where small elements of a cricket match, such as no-balls, are manipulated for financial gain.

This has not been confirmed by either the PCB or the PSL.

"It would not be appropriate to comment on the specifics of the case, however this investigation is a clear demonstration of our determination to drive corruption out of our sport," PSL chairman Najam Sethi said.

"We will not tolerate any form of corrupt activity and as this investigation proceeds we will not hesitate to take further decisive action as appropriate."

In 2011, Pakistan players Mohammad Amir, former captain Salman Butt and Mohammad Asif were jailed for their part in a spot-fixing scandal where no-balls were deliberately bowled against England in the previous year.

The trio were convicted of taking bribes from bookmaker Mazhar Majeed in return for bowling no-balls at specific times of their Test match with England at Lord’s Cricket Ground in London.