Maritime Analysis
Collision Aftermath: The Alsu Incident Examined
By VesselRate AI Editor
Sep 07, 2026
A recent maritime incident involving the cargo ship Alsu and the tanker 'Tuğberk İmamoğlu' has sparked significant legal scrutiny and raised alarms about navigational safety standards at sea. The collision occurred on September 3, 2023, resulting in the rapid sinking of the 'Tuğberk İmamoğlu', prompting an immediate investigation by the Silivri Chief Public Prosecutor's Office. Amidst ongoing investigations, the captain of the 'Alsu', Ahmet Erarslan, and second officer Murat Evciman, have been arrested following their initial testimonies, where both alleged that the 'Tuğberk İmamoğlu' made an unexpected maneuver towards their vessel, leading to the collision.
In their detailed accounts, both Erarslan and Evciman described instances where their radar successfully detected the presence of the 'Tuğberk İmamoğlu', yet it did not show up on their AIS system, which was operational. They claimed a miscommunication occurred between the vessels just before the incident, highlighting that the 'Tuğberk İmamoğlu' was instructed to steer to port yet instead turned starboard, resulting in an unavoidable collision. Witnesses stated that the collision took place at approximately 03:13 a.m., suggesting that poor bridge discipline and a lack of lookout contributed significantly to the disaster.
A preliminary report from investigators has indicated that the absence of a lookout combined with ineffective watchkeeping practices aboard both vessels was a critical factor in this calamity. Had proper protocols been followed, the accident might have been averted or mitigated. The report indicated that if a lookout had been present on the 'Tuğberk İmamoğlu', the impending danger could have been recognized far earlier, allowing for preventive measures to be taken. The 'Tuğberk İmamoğlu' quickly sank after sustaining damage to its port side, while the 'Alsu' continued to navigate with only minor scrapes.
As for the remaining crew members on board the 'Alsu', nine of the ten crew members, excluding the cook, were detained as part of the investigation. Judicial proceedings are ongoing; however, four members were eventually released but under judicial supervision, while Erarslan and Evciman face serious charges linked to navigational negligence.
Moving forward, the Turkish authorities have committed to a thorough investigation, pledging to assess navigation logs, communication records, and other pertinent evidence to uncover the full truth of the incident. Meanwhile, search and rescue efforts for the missing crew members of the 'Tuğberk İmamoğlu' are being coordinated with relevant maritime organizations, reflecting the gravity of the situation and the pressing need for enhanced maritime safety regulations to prevent future tragedies.
In their detailed accounts, both Erarslan and Evciman described instances where their radar successfully detected the presence of the 'Tuğberk İmamoğlu', yet it did not show up on their AIS system, which was operational. They claimed a miscommunication occurred between the vessels just before the incident, highlighting that the 'Tuğberk İmamoğlu' was instructed to steer to port yet instead turned starboard, resulting in an unavoidable collision. Witnesses stated that the collision took place at approximately 03:13 a.m., suggesting that poor bridge discipline and a lack of lookout contributed significantly to the disaster.
A preliminary report from investigators has indicated that the absence of a lookout combined with ineffective watchkeeping practices aboard both vessels was a critical factor in this calamity. Had proper protocols been followed, the accident might have been averted or mitigated. The report indicated that if a lookout had been present on the 'Tuğberk İmamoğlu', the impending danger could have been recognized far earlier, allowing for preventive measures to be taken. The 'Tuğberk İmamoğlu' quickly sank after sustaining damage to its port side, while the 'Alsu' continued to navigate with only minor scrapes.
As for the remaining crew members on board the 'Alsu', nine of the ten crew members, excluding the cook, were detained as part of the investigation. Judicial proceedings are ongoing; however, four members were eventually released but under judicial supervision, while Erarslan and Evciman face serious charges linked to navigational negligence.
Moving forward, the Turkish authorities have committed to a thorough investigation, pledging to assess navigation logs, communication records, and other pertinent evidence to uncover the full truth of the incident. Meanwhile, search and rescue efforts for the missing crew members of the 'Tuğberk İmamoğlu' are being coordinated with relevant maritime organizations, reflecting the gravity of the situation and the pressing need for enhanced maritime safety regulations to prevent future tragedies.
Based on these news reports:
- Investigation Continues Following Collision Involving Alsu and Tuğberk İmamoğlu (2026-09-04)
- Arrest of Captain and Officer Following 'Alsu' Incident (2026-09-04)
- Investigation Uncovers Key Factors in Fatal Tanker Collision Off Silivri (2026-09-03)