Mohammed Asif apologised to the entire nation over the Dubai fracas, claiming he had never used prohibited drugs.

Addressing a press conference after his meeting with Pakistan Cricket Board (PCB) Chairman Nasim Ashraf, he said he had tested negative for use of banned drugs before the Indian Premier League and later in Dubai.

Asif returned home on Friday after authorities in Dubai dropped a drug investigation case against him, ending almost three weeks of detention.

Meanwhile, International Cricket Council (ICC) has asked Pakistan Cricket Board (PCB) to submit a report about fast bowler Muhammad Asif.

ICC spokesman Samiul Hasan Burni said that ICC would come to a concliusion after receiving a report from PCB.

Asif arrived in Pakistan on a flight from Dubai early on Friday, after nearly three weeks of detention, and immediately claimed innocence.

"I feel ashamed and apologise to the whole nation over what happened," he told reporters.

He said he had never used any illegal substance.

"No banned substance was recovered from me, and all of my tests were clear," he told reporters at Lahore International Airport.

He said he was also cleared in two earlier medical tests before playing in India.

"If those tests had not been cleared, ICC would have banned me earlier," he said, referring to world cricket's governing body, the International Cricket Council.

Ashraf announced a three-member committee on Fridday, chaired by the PCB's chief operating officer Shafqat Naghmi to investigate the Asif case from Monday.