Leg-spinner Danish Kaneria, batsman Younis Khan and bowler Umar Gul were quizzed by the ICC's Anti-Corruption and Security Unit (ACSU) in Lahore, the ICC said in a statement.
The interviews "were not conducted in relation to any alleged breach of the ICC code of conduct" it said Wednesday.
"The purpose of these interviews was to seek specific information and the ACSU has confirmed that this information was provided by the players," it said.
The statement did not mention banned fast bowler Shoaib Akhtar, who claimed last week that he was offered money to throw matches, but Pakistani sources told AFP on Tuesday that the paceman was also interviewed at the weekend.
The Pakistan Cricket Board also confirmed on Wednesday that some of its players were interviewed by the ACSU investigators.
Sources told AFP that the ACSU investigator Alan Peacock visited Pakistan over the weekend and interviewed the players.
The investigations started after Akhtar in a television interview last Wednesday claimed he was offered money to throw matches in South Africa in 2003 and in India.
The 32-year-old paceman did not mention what year the offers were made in India. He was part of Pakistan team to India in 1999 and 2007.
Akhtar's claims came a day after he was banned for five years by the Pakistan Cricket Board over a series of breaches of contract, including hitting teammate Mohammad Asif with a bat in September last year.