ST. PAUL, Minn. (AP) - A key Republican says former Senate Majority Leader Amy Koch had been accused of an improper relationship with a Senate staff member before her sudden resignation.

Interim Senate Majority Leader Geoff Michel says staffers came to senators within the past several weeks with allegations.

Michel says Senate leaders went to Koch about the allegations. Michel says Koch neither admitted nor denied anything before her sudden resignation.

Koch did not immediately return a call from The Associated Press about the allegations.

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