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The Facts

Overwatch

Clearwater’s Overwatch Intelligence Directory is designed to provide clients with simple access to our archive of maritime security incident intelligence, dating back to 2017. Qualitative analysis can be conducted quickly and easily via the intuitive dashboard interface, providing users with key insights to inform critical operational decision-making in high-risk areas (HRA's)

The dashboard seen below provides interactive access to a 'lite' version of the Overwatch front page for free. Data is available from 2017 to 2020. Full access includes the latest data, additional pages and metrics specific to either geographical region or type of incident. To subscribe to the full dashboard, or for further information, please contact us using the subscribe button below

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Factual updates from our unique global intelligence network

U.S. Blockade on Ships Entering or Exiting Iranian Ports
Issued: 1 day, 15 hours ago
Date Reference Region Category Aggressors Source
2026-04-13 14:00:00 CW Alert 006- (Apr 26) Indian Ocean Advisory Military Open source/UKMTO
Open-source have reported that U.S. Central Command forces will implement a blockade of all maritime traffic entering and exiting Iranian ports, effective 13 April 2026 at 1400 UTC. The blockade will be enforced impartially against vessels of all nations entering or departing Iranian ports and coastal areas, including all Iranian ports on the Arabian Gulf and Gulf of Oman. CENTCOM forces have stated they will not impede freedom of navigation for vessels transiting the Strait of Hormuz to and from non-Iranian ports. All mariners are advised to monitor Notice to Mariners broadcasts and contact U.S. naval forces on bridge-to-bridge channel 16 when operating in the Gulf of Oman and Strait of Hormuz approaches. UPDATE: The UKMTO have confirmed that neutral vessels currently within Iranian ports have been granted a limited grace period to depart.

Robbery on a bulk carrier, Singapore Strait

It has been reported that the has been a robbery onboard a Portugal-flagged bulk carrier whilst transiting through the Philip Channel, Singapore Strait. The crew …

UKMTO Advisory - Extreme caution recommended in the vicinity of ports already subjected to strikes, Yemen

The UKMTO recommends vessels exercise extreme caution in the vicinity of ports in Yemen that have been subjected to strikes already, such as Hodeidah, Ras …

Attempted robbery on a Bulk carrier, Lome

It has been reported there has been an attempted robbery on a Liberian-flagged bulk carrier while anchored approximately 8nm south of Lome, Togo. The vessel …

UKMTO Advisory - Risk of Collateral Damage off Hodeidah, Yemen

The UKMTO has reported that there has been sustained kinetic activity in the Red Sea area since mid-March 2025, including recently reported strikes against targets …

Suspicious activity towards a vessel, Persian Gulf

It has been reported to the UKMTO, that a small craft collided with a vessel 80NM of the coast of Jebel Ali, UAE. The small …

Attack on a science vessel, Mozambique

Open-source reports state that a Russian-flagged research vessel was attacked by two small crafts whilst operating approximately 3nm East of Tambuzi, Off Cabo Delgado, Mozambique …

Electronic Interference, Red Sea

The UKMTO has received a number of corroborating reports from vessels experiencing GPS interference in the Red Sea, with disruptions lasting several hours, affecting navigation …

Robbery on a barge, Singapore Strait

It has been reported that there has been a robbery onboard a barge whilst it was under tow, Singapore Strait. Three perpetrators were spotted onboard …

Drone Strikes on Port Sudan, Sudan

Open-source media have reported that there has been a series of drone strikes in Port Sudan, targeting the Naval base, main sea port, international airport …

Robbery on a bulk carrier, Singapore Strait

It has been reported that there has been an attempted robbery on a Marshall Islands-flagged bulk carrier, whilst underway in the Philip Channel, Singapore Strait. …

Attempted robbery on a tanker, Singapore Strait

It has been reported that there has been an attempted robbery onboard a Panama-flagged tanker, whilst underway in the Philip Channel, Singapore Strait. The crew …

Attempted robbery on a bulk carrier, Singapore Strait

It has been reported that there has been an attempted robbery on a Hong King-flagged bulk carrier whilst underway in the Philip Channel, Singapore. The …

UKMTO Advisory - Risk of Collateral Damage off Hodeidah, Yemen

The UKMTO has reported that there has been sustained kinetic activity in the Red Sea area since mid-March 2025, including recently reported strikes against targets …

Robbery on a Bulk carrier , Singapore Strait

It has been reported that there has been a robbery onboard a bulk carrier whilst transiting through the Philip Channel, Singapore Strait. The crew spotted …

Kidnapping on a Passenger Boat and passenger boats taken, Nigeria

It has been reported that two passenger boats, transporting goods, were taken by armed men, whilst transiting between Cawthorne Channel and Bonny Island (exact time …

Airstrikes on Hodeidah Port, Yemen

Open-source media have reported that the Israeli military carried out airstrikes targeting the Port of Hodeidah, Yemen (exact time not specified). Reports state that the …

Attempted robbery on a bulk carrier, Singapore Strait

It has been reported that there has been an attempted robbery onboard a Panama-flagged bulk carrier, whilst underway in the Philip Channel. The crew spotted …

Attempted robbery on an offshore supply vessel, Mexico

It has been reported that there has been an attempted robbery on a Mexican-flagged offshore supply vessel in the Bay of Campeche, Mexico. The vessel …

Robbery on a container ship, Jakarta

It has been reported that there has been a robbery on board a Portugal-flagged container vessel moored at the anchorage in Jakarta, Indonesia. It is …

Drone strike on Novorossyisk port, Russia.

Open sources have reported that the Ukrainian Army have launched a UAV attack on Novorossyisk port, Russia. (exact time and location unknown). The attack involved …

UKMTO Notice - Military Live Firing Exercise, Pakistan Coastline

It has been reported by the UKMTO that Naval ships will conduct live surface and subsurface firing between 0300 UTC 02 May 2025 to 1500 …