Immigration Minister Scott Morrison's office has clamped down on information about asylum seekers issued by his department and border protection agencies.

Previously, the Australian Customs and Border Protection Service has issued statements whenever an asylum-seeker boat arrived and the Immigration Department provided collated figures each month, which they made publicly available.

But inquiries to both the department and ACBPS on boat arrivals are now being directed to the minister's office. Mr Morrison's spokesman is declining to provide any information.

During the election campaign, Mr Morrison flagged the possibility that boat arrivals would no longer be reported if the Coalition won government. He said at the time this would be an ''operational matter'' for the three-star head of the Coalition's new Operation Sovereign Borders task force.