Both U2 and Ed Sheeran have cancelled concert dates in St Louis over security concerns amid protests in the city after the acquittal of a white former police officer charged with murdering a black man.

The Irish band were booked to play at The Dome at America’s Center on Saturday night, while English singer Sheeran had sold-out a Sunday night show at the Scottrade Center. Police say they cannot guarantee the typical level of security as the city faces ongoing protests.

Hundreds protested on Friday and Saturday in downtown St Louis, in an upscale section of town and in well-to-do suburbs, leading to at least 32 arrests. More protests were expected Saturday night.