FBI agents staged a middle-of-the-night raid Wednesday at the home of Trenton’s mayor, whose administration of the state’s impoverished capital city has been marked by accusations of cronyism and reckless spending. They also searched the home of his brother and a convicted sex offender who was one of his biggest early campaign donors.

Mayor Tony Mack, emerging later in the morning from his home, denied having corrupted his office.

“We have not violated the public trust nor have I violated any of my public duties, and that’s all I have to say on the matter,” he said.

The FBI declined to provide any details on its investigation.