The Titans are embroiled in a salary cap probe over an incident involving star signing David Fifita's arrest on the Gold Coast last year.
The former Brisbane star was questioned and released without charge in December after a bizarre trespassing incident on the Gold Coast that was said to be a mix-up.
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It was assumed the matter had been dealt with ahead of Fifita's first appearance in Titans colours this Saturday in a trial game against the Warriors.
But the NRL are investigating the incident after NewsCorp reported revelations of a payment being made to the family involved in the incident.
It's understood the probe will centre on whether Fifita or the Titans provided the compensation and whether there are any salary cap implications around the circumstances of that payment.
NRL Integrity Unit's seeking information
At the time, the NRL Integrity Unit cleared Fifita after the police did not charge him.
But now the NRL Integrity Unit is in contact with the Titans over further information.
"The NRL integrity unit is seeking further information from the Gold Coast Titans concerning an incident involving David Fifita," an NRL spokesman told AAP.
"On the information provided, the salary cap position of the club will not be materially affect."
The devastating backrower arrived on the Gold Coast on a three-year deal worth more than $1 million a season to boost the club's hopes after finishing no better than eighth since 2010.
In a statement on Tuesday the Titans confirmed their cooperation with the NRL's investigation and expressed confidence they remained salary cap compliant.
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