9:21 AM PT -- The International Skating Union says the have investigated the allegations ... and found "no evidence" Mariah Bell intentionally attacked Lim Eun-soo.
"The incident was verbally reported to the ISU by the Korean Team Leader however no formal complaint has been received," The ISU said in a statement.
"Based on the evidence at hand at this point in time, which includes a video, there is no evidence that Ms. Bell intended any harm to Ms. Lim."
"The ISU met with delegates from both USA and Korea and urged both parties to find an amicable solution.