Follow CBSPHILLY Facebook  | Twitter

PHILADELPHIA (CBS) – Vandals shattered windows at the Starbucks in Rittenhouse Square Monday morning.

READ MORE: 2 People In Custody After Man Shot In Old City, Police Say

The store located at 18th and Spruce Streets was the center of controversy earlier this year.

Starbucks Apologizes Following Outrage Over Controversial Arrest Inside Store

READ MORE: Patriotism On Display At Fourth Of July Celebrations In Bucks County

The vandals left notes inside the coffee shop that referenced the ongoing prison labor strike happening across the country.

Shuttle Buses Will Replace SEPTA’s Warminster Line Rail Service Through December

Starbucks says they do not hire, or work with agencies that employ prison labor.

MORE NEWS: Upper Darby Police Searching For Teen Suspect Wanted In Fatal Shooting Of 14-Year-Old While Making Music Video

Crews repaired the windows and the store reopened Monday afternoon.