On Tuesday, a military officer found what seemed to be a naval signalling flare while hiking at Cala Dorada in Calblanque Natural Park, Cartagena. Authorities evacuated the area to safely neutralise the device. The following day, the Centre for Operations and Maritime Surveillance informed an Explosive Disposal Team from the Underwater Demolition Unit regarding the discovery.

Initially assessed, the Explosive Disposal Team confirmed that the object was an MK-25 Model Three flare. Despite it appearing to have functioned, it was likely to still contain residual hazardous material, specifically white phosphorus, which can ignite upon contact with air. This prompted further evacuation of Cala Dorada, supported by a Civil Guard patrol.

An ambulance from the Murcia Region’s emergency services provided medical coverage during the operation. The Explosive Disposal Team conducted a controlled detonation on-site, which enabled the burning of any remaining white phosphorus. After a safe period, the area was cleared for transportation of the flare’s remnants to the appropriate disposal site.

While white phosphorus is not considered a high explosive, it is a highly dangerous incendiary agent, igniting in contact with air and causing severe burns upon skin contact. Authorities advise that any discovery of such devices should be reported immediately, without attempting to handle or move them, as only trained specialists are equipped to manage these hazardous materials.