Pakistan's top fast bowlers Shoaib Akhtar and Muhammad Asif were banned from international and domestic cricket for failing drug tests, local newspaper Dawn reported on Thursday.

According to a ruling of the Pakistan Cricket Board (PCB) doping tribunal, Shoaib will serve a two-year ban and Asif will be unable to play for one year after testing positive for nandrolone, a banned steroid.

"After a thorough inquiry, we feel they failed to prove their innocence," said tribunal chairman Shahid Hamid.

The three-member tribunal, headed by Barrister Shahid Hamid with former test captain Intikhab Alam and dope test expert Waqar Ahmed as its members, announced a detailed 19-page judgment.

Both players have a right of appeal, but the PCB has accepted the panel's decision.

The test reports of Shoaib and Asif's were found positive after the PCB had carried out dope tests with 19 Pakistan players ahead of the International Cricket Commission (ICC) Champions Trophy-2006.

The two pacers were subsequently suspended and called back from India on October 15.

According to the tribunal ruling, the ban will come into effect from October 15, the date on which the two players were suspended by PCB.