Incident Overview: W-sapphire Explosion and Recovery Efforts

On August 18, 2025, the bulk carrier W-sapphire experienced a significant explosion while en route from Baltimore to Port Louis, just after loading a cargo of coal at CSX's Curtis Bay terminal. The explosion occurred around 6:30 p.m. LT on the Patapsco River, near the now-collapsed Francis Scott Key Bridge, south of Fort Carroll. Fortunately, all 23 crew members and two pilots aboard the vessel were unharmed during the incident.

In response to the explosion, the Coast Guard Sector Maryland - National Capital Region deployed teams to the site to provide assistance and ensure safety in the area. A prompt fire response involved closing the vessel’s hatches, enabling containment of the fire, while fireboats remained on the scene. The W-sapphire was subsequently assisted to a nearby mooring by tugboats and anchored in position 39° 02' N 076° 22' W. A safety zone extending 2,000 yards around the incident area was established to safeguard ongoing operations, affecting vessel traffic between the Key Bridge and Brewerton Angle Channel LB “14.”

As investigations began, the Coast Guard swiftly coordinated response efforts with local port partners, including the Baltimore Fire Department and the Maryland Department of Natural Resources Police. They dispatched multiple response boats to the site, ensuring a robust safety protocol was followed.

Ten days later, on August 28, a crucial development occurred. The 30-ton hatch cover, which detached during the explosion and prompted safety concerns, was successfully recovered from the river. Following the recovery operation, the U.S. Coast Guard lifted the safety zone restrictions that had intermittently affected vessel movements in the Fort McHenry Federal Channel. Prior to reopening, the U.S. Army Corps of Engineers employed sonar equipment to assess the navigational area for any remaining obstructions, further enhancing maritime safety.

Despite the incident's impact on the Port of Baltimore, the focus now shifts to identifying the cause of the explosion aboard the W-sapphire. Investigations remain ongoing, though no definitive cause has yet been cited. The bulk carrier remains anchored off Sandy Point as the situation continues to unfold, with maritime officials committed to ensuring the safe resumption of traffic in the affected waterways.