Video: Security footage released by the U.S. Postal Inspection Service captured burglary suspects entering the office at 100 W. Randolph St. in Chicago on May 22, 2023. (Credit: U.S. Postal Inspection Service)

A group of more than a dozen males allegedly attempted to break into a post office at the James R. Thompson Center early Monday morning, according to police.

The Chicago Police Department said Monday it was searching for approximately 18 males who are believed to have attempted to break into the office.

They allegedly broke a front door and gained entry just after 12:30 a.m. Monday, but it was not immediately clear if anything was taken. Area Three detectives are investigating, but no one was in custody as of early Monday afternoon.

A spokesperson for the U.S. Post Office did not immediately respond to a request for comment.

The U.S. Postal Inspection Service announced it is offering a reward of up to $10,000 for information that leads to the arrest and conviction of those involved in the attempted burglary.

As of last week, burglaries in the 1st District — where the Thompson Center is located — were down 20% on the year, according to CPD data. Citywide, burglaries are up 5% compared to the same time last year.

Contact Matt Masterson: @ByMattMasterson | [email protected] | (773) 509-5431