Hong Kong, November 15, 2025 — Construction work near the expansion zone of Hong Kong International Airport (HKIA) was briefly halted today after workers unearthed an unexploded British wartime mortar. The device, discovered late this morning in an area designated for the new third runway, prompted an organized evacuation and a controlled detonation operation successfully carried out by the Police Explosive Ordnance Disposal (EOD) Unit. Despite the proximity to a major transport hub, authorities confirmed that all scheduled flight operations continued without interruption.
The discovery was reported to police at 11:58 a.m. The site is situated roughly 600 meters opposite the new air traffic control tower facility. EOD specialists quickly arrived and confirmed the object was a mortar projectile, measuring approximately 30 by 7 centimeters. Due to Hong Kong’s history as a major battleground during World War II, the discovery of unexploded wartime ordnance (UXO) is relatively common, particularly during large-scale excavations.
Controlled Detonation Secures Construction Site
To ensure public safety, an evacuation protocol was immediately activated. Approximately 900 construction workers and nearby personnel were safely moved to a designated secure location while experts prepared the device for disposal.
The EOD team assessed the mortar’s condition and determined that the safest course of action was an on-site controlled detonation. The operation was executed successfully at approximately 5 p.m., rendering the relic safe. Authorities confirmed that no injuries were sustained by the personnel involved or the evacuees throughout the multi-hour operation.
Airport Operations Maintained Stability
A key concern during any incident near a major international airport is the potential impact on air traffic. However, airport authorities quickly assured the public that the incident was isolated to the construction zone.
“Flight movements continued as normal,” an airport spokesperson stated, emphasizing that the discovery and subsequent disposal operation did not necessitate any runway closures, air traffic diversions, or flight delays. The swift coordination between the construction management, airport personnel, and police EOD ensured that core aviation services remained undisturbed.
The constant discovery of UXO in Hong Kong underscores the need for stringent safety protocols during major infrastructure projects. Excavation teams frequently utilize advanced geotechnical surveys and training to identify potential hazards before digging commences. These protocols are crucial for protecting workers and preventing disruptions to essential services. Construction work at the third runway site is expected to resume immediately following the safety clearance.