UEFA investigators looking into match-fixing by an Albanian club have received anonymous death threats.
The European governing body said UEFA disciplinary inspectors working on the case against KF Skenderbeu had received threats "presumably intended to intimidate them and stop them from carrying out their work."
"These threats will not succeed and the police have also been informed," UEFA said in a statement.
UEFA president Aleksander Ceferin said: "We will never allow UEFA staff working on these matters, or any other matters, to be subject to threats or intimidation from any third parties. They have the full backing of the organisation, including 100 percent personal support from me."
Skenderbeu won the Albanian Superliga title for six straight seasons from 2010-11 to 2015-16, although were stripped of the last championship win for match-fixing.
They were banned from participating in UEFA competitions in the 2016-2017 season, a suspension recently upheld by the Court of Arbitration for Sport, but UEFA is now pushing for a longer ban.
The UEFA investigation is based largely on data gathered via its Betting Fraud Detection System BFDS and the body added: "Additional information obtained via the UEFA BFDS now suggests a far greater pattern of involvement by KF Skenderbeu in match-fixing."