ST. PAUL, Minn. — Minnesota Democrats are sharply criticizing Sen. Al Franken over a sexual harassment allegation.

A fellow performer on Franken’s 2006 USO tour to entertain service members abroad accused Franken on Thursday of forcibly kissing her during a skit rehearsal. Leeann Tweeden also posted a photo in which Franken is showing grinning at a camera with his hands on her breasts as she slept.

State Democratic Chairman Ken Martin praised Tweeden for telling her story and said there was no excuse for Franken’s actions. Martin said the party supports an ethics investigation.

Sen. Amy Klobuchar, like Franken a Democrat, also criticized his behavior and called for an investigation. And Angie Craig, a Democrat running for Congress, announced she would donate $15,000 in campaign contributions from Franken to a charitable organization.