Updated

Hundreds of protesters angry over police killings of black people occupied a key bridge over the Mississippi River Sunday night, blocking an interstate highway for hours before officers moved them off.

Traffic on Interstate 40 stopped in both directions after Black Lives Matter protesters marched onto the bridge. Police in squad cars tried to stop them, but several hundred had already made their way up the ramp, and the crowd swelled to more than 1,000.

Interim police director Michael Rallings locked arms in solidarity with people marching off the bridge. Several hundred remained until riot police with shields slowly pushed them off.

Earlier Sunday police kept watch on about 100 people honoring Ku Klux Klan leader Nathan Bedford Forrest in the city park where he is buried.