TRENTON - Trenton Mayor Tony Mack was reportedly back at work today, just one day after being released on $150,000 bond following his arrest over federal corruption charges.

The mayor did not attend the city's 9/11 memorial ceremony today. According to City Hall insiders, Mack was seen at work this morning but took off just before lunch.

Calls made by News 12 New Jersey to his office and cell phone were not returned.

Mack is not required to resign unless he is convicted in federal court.

The official extortion charge against Mack carries a maximum sentence of 20 years in prison.

Trenton Mayor Tony Mack back on the job Jailed Trenton mayor released on $150K bond VIDEO: News conference on arrest of Trenton Mayor Tony Mack READ: Criminal complaint against Trenton Mayor Tony Mack