"As part of the ongoing investigation we are working closely with the Pakistan Cricket Board and International Cricket Council's anti-corruption units".
Sources said investigators have not so far cleared Muhammad Irfan who is playing for Islamabad United.
Talking about how the entire investigations into the match-fixing charges were carried out, Sethi said that Pakistan Cricket Board's Anti-Corruption Unit pursued the investigations against Sharjeel Khan and Nasir Jamshed in a very responsible manner.
Two more players of Zulfiqar Babar (Quetta Gladiator) and Shahzaib Hasan (Karachi Kings) were also quizzed but cleared of any wrong-doing.
The investigation has since turned to Britain where two men were reportedly arrested on suspicion of bribery offenses.
In view of the foregoing; and to save the prestige, reputation and name of Pakistan in the global circles; and in the name of transparency and accountability, it is high time that with immediate effect, the entire board of governors of the PCB may be replaced with a new interim set up; with the mandate to rebuild the whole cricketing structure in Pakistan, on modern and progressive lines.
Sharjeel and Latif have been accused of meet a suspicious person linked to an worldwide betting syndicate.
The PSL, a five-team Twenty20 event, started last week.
And on Monday, the PCB issued a short statement to say Jamshed has also been been provisionally suspended from all forms of the game for "violating its anti-corruption code".
However, the Pakistan Super League 2017 final is scheduled for the Gaddafi Stadium in Lahore on March 5; causing major trouble for the cricketers to rethink about their participation in the match.
Sharjeel has a contract with English county side Leicestershire to play in the domestic Twenty20 Blast tournament later this year.
Nasir Jamshed has played in two Test matches and over 40 ODIs for Pakistan.