Bernie Sanders’ presidential campaign says the Vermont senator has been treated at a walk-in clinic for a minor injury while campaigning in South Carolina.

Campaign spokesman Arianna Jones told reporters that Sanders cut his head on the edge of a glass shower door Friday and went to a walk-in clinic. She says the 77-year-old Sanders received a half-dozen stitches and was given a “clean bill of health.”

Jones says Sanders is continuing with all scheduled events, including a breakfast with local clergy and a roundtable on health care while in South Carolina. Sanders traveled to Nevada ahead of his first rally in the early-voting state since launching his presidential bid.

On Saturday, Sanders said “a little black eye” isn’t going to stop him.

Sanders told a crowd of at least 1,000 people attending a rally at a Las Vegas suburb his policies that were once seen as too radical, including a $15-an-hour minimum wage, have now become mainstream.

He pitched his campaign as a crusade for justice in all forms — social, economic, racial and environmental — that will defeat President Donald Trump with the help of what he called an “unprecedented grassroots effort.”

The rally was Sanders’ first appearance this year in Nevada, where he gave Hillary Clinton a surprisingly strong challenge in the 2016 caucuses before she edged out a win.

(AP)