CHATTANOOGA (WRCB) – Postal investigators have released a sketch of a man they say robbed a Chattanooga post office and sexually assaulted employees.

The incident occurred the morning of January 15, at the East 34th Street post office.

Two female employees told police a man forced his way in to the facility, claiming to have a gun and demanded money.

He then forced both women to remove their shirts and fondled one of them. The suspect fled with $500 in cash and $9000 in stamps.

US Postal Inspectors have issued a $20,000 reward for information leading to the arrest of the suspect.

Investigators say the suspect is armed and should be considered dangerous.

The suspect is described as a black male, standing 5'8 and weighing around 150 pounds.

Anyone who has information on this incident is asked to contact the Post Master General's Office 24-hour service number at 1-877-876-2455.