The Danish Maritime Authority Søfartsstyrelsen has raised the security level in the Persian Gulf, the Strait of Hormuz and the Gulf of Oman. Danish ships are now subject to MARSEC 3, the highest security level.
The security level has been raised to MARSEC 3 for Danish ships operating in the Persian Gulf, the Strait of Hormuz and the north-western part of the Gulf of Oman. According to the authority, the decision is based on an assessment of the escalating conflict situation in the Middle East, the increasing military activities in the region and the risk of collateral damage that could affect civilian shipping.
MARSEC 3 is the highest security level and means that additional, specific protection and security measures must be implemented for a limited period of time.
This notification replaces the security notification issued by the Danish authorities on February 28, 2026 for the Persian Gulf, the Strait of Hormuz and the northwestern part of the Gulf of Oman at security level MARSEC 2.
The area of security level MARSEC 3 is limited as follows:
- North of 24°00′ N
- West of 61°40′ E
Ports within this area, but outside Iran, remain at MARSEC 1.
The risk of GNSS and AIS signal interference is high in the region. It is recommended to implement security measures in accordance with Best Management Practices (BMP).
Ships should report suspicious observations in accordance with BMP to their Company Security Officer (CSO), the Danish Maritime Assistance Service (MAS), the United Kingdom Maritime Trade Operations (UKMTO) and the Maritime Security Center – Indian Ocean (MSCIO).
If Danish ships are in immediate danger, they should activate the Ship Security Alert System (SSAS) and make a distress call via the Digital Selective Calling (DSC) system.
The Danish National ISPS Coordination Authority will continuously monitor the situation and update the security level with a new OXXO message if necessary, according to the statement.
