Top U.S. intelligence officials, including CIA Director Mike Pompeo and FBI Director James Comey are reportedly heading to New Zealand this weekend for a secret gathering of the Five Eyes spying alliance, according to a report.

The New Zealand Herald reported that it has learned that 15 intelligence-related agencies, including the heads of the CIA and FBI, will be in attendance.

A spokesman for New Zealand Prime Minister Bill English confirmed that senior officials are convening in Queenland for a conference, but did not confirm whether it was a meeting of the intelligence alliance that comprises the U.S., Canada, the United Kingdom, Australia and New Zealand.

"Due to specific security requirements we cannot comment further at this time. However, as police have pointed out they are not aware of a visit to Queenstown by a current or former head of state," the spokesman said.

Spokespeople for the CIA and FBI would not comment on their directors' upcoming schedules.

It was reported Wednesday that the CIA and the FBI are launching a joint probe into a federal employee possible behind the theft of documents on the CIA hacking program that have been published by WikiLeaks in recent weeks. During a speech last week, Pompeo assailed WikiLeaks as a "non-state hostile intelligence service often abetted by state actors like Russia."

Though details on the meeting are sparse, it isn't all that out of the ordinary for the Five Eyes alliance to meet. Former Prime Minister John Key let slip last year that then-Director of National Intelligence James Clapper passed through Australia on his way to a Five Eyes meeting.

Rumors about the conference have been swirling for some time, including speculation that former President Obama could be attending, according to local reports.

The conference in New Zealand comes just after President Trump announced his nominee for U.S. ambassador to the island nation, former Massachusetts Sen. Scott Brown.