MERSEY (Oil tanker, Latvia flag) was last seen on AIS on Oct 4, 2026, 07:57 UTC, under way at 10.6 kn, in the Baltic Sea. The crew-entered destination was DE KEL (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 07:34 UTC). This report does not confirm the ship’s current route.

What kind of ship is MERSEY?

MERSEY is an oil tanker sailing under the flag of Latvia, built in 1998 by Vickers Shipbuilding and Engineering. The vessel is 91.4 m long with a beam of 15.5 m and has a gross tonnage of 2,760.

What sanctions and inspection records does Voydar hold for MERSEY?

Voydar has no matched sanctions record displayed for MERSEY from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for MERSEY. Missing records do not establish whether the ship has been detained.

MERSEY

Oil tanker · Latvia · built 1998 · AIS Class A

IMO9170420MMSI275541000Call signYLSCLast AIS position Oct 4, 2026, 07:57 UTC

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In short

MERSEY (Oil tanker, Latvia flag) was last seen on AIS on Oct 4, 2026, 07:57 UTC, under way at 10.6 kn, in the Baltic Sea. Its crew-entered AIS destination is DE KEL (Kiel), with an ETA of Oct 4, 2026, 18:30 UTC; its reported draught is 5 m (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 07:34 UTC).

Current voyage: from Warnemunde (departed Oct 4, 2026, 06:53 UTC) to DE KEL (Kiel)

Vessel type: Oil tanker
Flag: Latvia
Year built: 1998
Gross tonnage: 2,760
Size (length × beam): 91 m × 16 m
Registered owner: —

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Last reported position

received Oct 4, 2026, 07:57 UTC

Position: 54.3653° N, 11.8176° E
Area: Baltic Sea
StatusWhat do AIS statuses mean?: Under way using engine
Speed: 10.6 kn
Course: 315°
Heading: 318°

54.3653° N, 11.8176° E

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Last 30 days: 6 port calls (Warnemunde, Skagen, Bremen, Botlek, and Bremerhaven).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name: MERSEY
IMO numberWhat is an IMO number?: 9170420
MMSIWhat is an MMSI?: 275541000
Call signWhat is a call sign?: YLSC
Flag: Latvia
Vessel type: Detailed type from WikidataOil tanker
AIS ship type: Tanker (hazardous cat. C)
Gross tonnageGross tonnage vs deadweight: 2,760
Length overall: 91.4 m
Beam: 15.5 m
Year built: 1998

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Builder: Vickers Shipbuilding and Engineering
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

Date	Event	Source
Oct 4, 2026, 06:53 UTC	Left WarnemundeAIS-detected	Voydar port-call detector (AIS geofence)
Oct 3, 2026, 14:08 UTC	Arrived at WarnemundeAIS-detected	Voydar port-call detector (AIS geofence)
Oct 2, 2026, 11:22 UTC	Left SkagenAIS-detected	Voydar port-call detector (AIS geofence)
Oct 1, 2026, 22:06 UTC	Arrived at SkagenAIS-detected	Voydar port-call detector (AIS geofence)
Sep 28, 2026, 12:59 UTC	Left BremenAIS-detected	Voydar port-call detector (AIS geofence)
Sep 28, 2026, 04:37 UTC	Arrived at BremenAIS-detected	Voydar port-call detector (AIS geofence)

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

Port	Arrived	Departed	Time in port
Warnemunde DEWAR	Oct 3, 2026, 14:08 UTC	Oct 4, 2026, 06:53 UTC	16 h 45 min
Skagen DKSKA	Oct 1, 2026, 22:06 UTC	Oct 2, 2026, 11:22 UTC	13 h 16 min
Bremen DEBRE	Sep 28, 2026, 04:37 UTC	Sep 28, 2026, 12:59 UTC	8 h 22 min
Botlek NLBOT	Sep 25, 2026, 19:19 UTC	Sep 26, 2026, 12:16 UTC	16 h 58 min
Bremerhaven DEBRV	Sep 23, 2026, 04:52 UTC	Sep 23, 2026, 13:03 UTC	8 h 11 min
Botlek NLBOT	Sep 21, 2026, 08:02 UTC	Sep 22, 2026, 11:00 UTC	26 h 58 min
Finkenwerder DEXFW	Jun 15, 2026, 06:05 UTC	Jun 16, 2026, 02:21 UTC	20 h 15 min
Kiel DEKEL	Jun 14, 2026, 15:37 UTC	Jun 14, 2026, 16:55 UTC	1 h 18 min
Warnemunde DEWAR	Jun 10, 2026, 14:27 UTC	Jun 10, 2026, 17:07 UTC	2 h 39 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Behaviour at sea Voydar-derived

Patterns Voydar derived from this ship's AIS broadcasts. They are inferences, not reports: each one shows how it was computed and how confident we are, and none of them says why a ship behaved this way.

When	What we observed	Confidence
Sep 26, 2026, 09:09 UTC	Draught change Reported draught went from 5.2 m to 6.2 m while in port at Botlek. Voydar infers the ship probably loaded cargo. Method seadar.behaviour.draught_change v1	Medium (65%)
Sep 24, 2026, 07:32 UTC	Draught change Reported draught went from 6 m to 5.2 m after leaving Bremerhaven. Voydar infers the ship probably discharged cargo. Method seadar.behaviour.draught_change v1	Medium (55%)

When

What we observed

Confidence

Sep 26, 2026, 09:09 UTC

Draught change

Reported draught went from 5.2 m to 6.2 m while in port at Botlek. Voydar infers the ship probably loaded cargo.

Method seadar.behaviour.draught_change v1

Medium (65%)

Sep 24, 2026, 07:32 UTC

Draught change

Reported draught went from 6 m to 5.2 m after leaving Bremerhaven. Voydar infers the ship probably discharged cargo.

Method seadar.behaviour.draught_change v1

Medium (55%)

Source: AISstream.io global terrestrial AIS. AIS data: AISstream.io. Licence: none published.

Derived from AIS positions of feeds whose terms allow display on Voydar. Coverage is terrestrial: gaps are reported only where our receivers kept hearing other ships. Detections below medium confidence are not shown.

How these are computed →

Frequently asked questions

Where is MERSEY now?: MERSEY (Oil tanker, Latvia flag) was last seen on AIS on Oct 4, 2026, 07:57 UTC, under way at 10.6 kn, in the Baltic Sea. The crew-entered destination was DE KEL (voyage report via AISstream.io global terrestrial AIS, received Oct 4, 2026, 07:34 UTC). This report does not confirm the ship’s current route.
What kind of ship is MERSEY?: MERSEY is an oil tanker sailing under the flag of Latvia, built in 1998 by Vickers Shipbuilding and Engineering. The vessel is 91.4 m long with a beam of 15.5 m and has a gross tonnage of 2,760.
What sanctions and inspection records does Voydar hold for MERSEY?: Voydar has no matched sanctions record displayed for MERSEY from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels, the New Zealand Russia Sanctions Register and the French national asset-freeze register. Coverage may be incomplete; this is not sanctions clearance. No matched inspection records are displayed for MERSEY. Missing records do not establish whether the ship has been detained.

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