At least thirty Democratic senators have called on US Senator Al Franken to resign amid sexual misconduct claims.

In statements released almost simultaneously on Wednesday, a group of Democratic lawmakers said the embattled Minnesota senator must step down.

Mr. Franken, a former Saturday Night Live comedian, has been accused of groping and sexually harassing seven women, including a US military veteran.

He has apologised to his accusers, while disputing some allegations.

In a statement on Wednesday, Mr. Franken’s office said the senator “will be making an announcement tomorrow”.

The senator said  a report by Minnesota Public Radio that he would resign his seat on Thursday was “not accurate”.

On twitter, he said “No final decision has been made”,  and that he was still talking with his family.

Six prominent female Democratic senators, who have been heavily involved in the effort to force Mr. Franken out of Congress,  released their statements online.

They spoke out following media reports that the beleaguered Minnesota senator had allegedly tried to forcibly kiss a former congressional aide in 2006. He denied the claim.