Philadelphia rapper Meek Mill has been charged with misdemeanor assault after an incident involving two airport employees at St. Louis-Lambert International Airport on Wednesday, according to entertainment website, TMZ.

Meek Mill performed at the annual State of Emergency concert at Chaifetz Arena Tuesday night.

TMZ reports an airport employee asked to take a picture with Meek, but was rejected. His cousin eventually jumped in

The airport employees were also charged with misdemeanor assault.

Meek Mill is on probation for a weapons and drug conviction.