Argo Group International Holdings, Ltd. announced a preliminary pre-tax catastrophe loss estimate for the three-month period ended December 31, 2018 of $32 million, primarily related to Hurricane Michael and the California Wildfires. Additionally, the company's fourth quarter 2018 results will be impacted by higher than expected current accident year losses of approximately $12 million, including a number of discrete Marine and Energy claims. Catastrophe loss estimates include claims costs net of ceded reinsurance recoverables and reinstatement premiums, and include losses related to certain aggregate excess of loss contracts.