TRENTON - FBI agents are seeking evidence of bribery, fraud, extortion and money laundering in the investigation against Trenton Mayor Tony Mack.

According to documents obtained by The Times of Trenton, agents are also looking into vendor contracts with the capital city.

Last week, agents raided City Hall offices, as well as the homes of Mayor Tony Mack, his brother, and a campaign donor.

Mayor Mack is out of town on vacation. He's expected to return next Monday.

FBI searches Trenton mayor's house, 2 other locations VIDEO: Trenton mayor speaks after FBI raid at home