Racist, anti-immigrant signs were posted at Denver bus stops. How Colorado officials are responding.

Regional Transportation District (RTD) officials are working with law enforcement to determine who posted several racist, anti-immigrant signs at several bus stops along one of Denver’s busiest transit corridors overnight.

The first of at least three signs which reference Jim Crow-era laws and a perceived preferential treatment of immigrants coming from the southern border by the Biden administration over U.S. citizens, was found by a bus operator of Route 15 at around 5 a.m. Thursday, according to an RTD spokesperson. The route traverses a nearly 20-mile stretch from Denver’s Union Station to Tower Rd. in Aurora.

The metal sign was attached to the bus stop’s pole with rivets and appeared to have been installed shortly before it was reported, the RTD spokesperson said in a statement.

Two other signs were later found at bus stops near the intersections of Colfax and Garfield St., as well as Colfax and Yosemite St.

Read more: ABC Denver