The ICC's Anti-Corruption Unit (ACU) has seen a "number of people" use the 15-day amnesty period for reporting corruption-related conduct in Sri Lanka, according to ACU chief Alex Marshall.

With ten days still go to in the amnesty period, during which the ACU hopes to gather evidence with which it may further its investigations in Sri Lanka, Marshall has once again urged those with information about corruption to come forward. While under normal circumstances, failure to report a corrupt approach may result in a ban, punishments for failure to report have been suspended under the amnesty.

"We are approaching the end of the first week of our 15-day amnesty to participants who have previously failed to report any information concerning corrupt conduct in Sri Lankan cricket," Marshall said in a statement. "I am encouraged by the number of people that have come forward and the new information we're receiving as a result. This intelligence is assisting our ongoing and wide-ranging investigations in Sri Lanka as well us enabling us to continue to develop a comprehensive picture of the situation there.

"I would urge any more players or participants who have any information concerning corrupt conduct to come forward over the next week and share it with us in the strictest of confidence without any fear of repercussions."

The ICC has already charged three former Sri Lanka players, including Sanath Jayasuriya and Nuwan Zoysa, under the ant-corruption code.