Law enforcement in Lancaster and the county are investigating two convenience store robberies by unidentified suspects well concealed in camouflage gear. The first incident happened the night of March 8 at 903 Discount Beverage, 720 Chesterfield Ave. in Lancaster. The most recent robbery happened early Friday morning at Jack’s Highway 9 Party Shop, 2190 Pageland Highway West. No shots were fired in either robbery, and no one was injured.