A maritime incident has been reported in the Southern Red Sea, approximately 30 miles northwest of the Hanish Islands, in the vicinity of position 14-29.3N 042-11.2E, on April 3, 2018. The incident has been confirmed. The nature of the incident is preliminarily assessed to be a projectile that resulted in hull penetration and minor damage above the waterline to a commercial oil tanker. Perpetrators are unknown. Exercise caution when transiting this area. Further updates will be provided when available. This alert will automatically expire on April 10, 2018. See U.S. Maritime Advisory 2018-001 for additional information on this area. For any questions about this alert, contact MaradSecurity@dot.gov.