OREANDA-NEWS. A.M. Best has assigned a financial strength rating (FSR) of A (Excellent) and an issuer credit rating (ICR) of “a” to Sirius Bermuda Insurance Company Ltd (Sirius Bermuda) (Bermuda). The outlook assigned to each rating is negative. Concurrently, A.M. Best has affirmed the FSR of A (Excellent) and the ICR of “a” of Sirius International Insurance Corporation (publ) (Sirius International) (Sweden) and its subsidiary, Sirius America Insurance Company (Sirius America) (New York, NY). Additionally, A.M. Best has affirmed the ICR of “bbb” of Sirius International Group, Ltd. (Sirius Group) (Bermuda) and its existing issue ratings.