Investing.com -- South Korean authorities are moving to verify reports of a potential attack on a domestic vessel within the increasingly volatile Strait of Hormuz. The investigation commenced Monday following preliminary reports of an incident in the strategic waterway, according to reporting from Yonhap News.

South Korea’s Maritime Ministry confirmed that an explosion occurred in the engine room of the Korean-flagged vessel, according to reporting from Xinhua. The blast was reportedly observed on the port side of the ship while it was anchored outside port limits.

The South Korean Foreign Ministry stated that no casualties involving South Korean nationals have been confirmed following the incident. "We have preliminarily confirmed that there are no casualties among our nationals," an official told Yonhap News.

The reported incident follows the launch of "Project Freedom," a U.S.-led initiative designed to assist commercial ships stranded by an Iranian blockade. Tehran has effectively restricted the narrow passage since U.S.-Israeli strikes hit Iranian targets in late February, citing a need for military approval for all transits.

Adding to the regional friction, Iran’s navy stated Monday that it turned away enemy warships following a "swift and decisive warning," according to Reuters. However, U.S. Central Command disputed the claim, stating no American navy ships were hit and confirming that two U.S.-flagged merchant vessels successfully transited the strait.

The Associated Press earlier reported that the U.S.-led Joint Maritime Information Center has established an "enhanced security area" south of traditional routes. This center warned that typical paths through the strait are "extremely hazardous" due to naval mines that have not been fully surveyed.

Centcom indicated it would provide support through 15,000 military personnel and over 100 aircraft. These forces are operating in support of efforts to reopen the passage.

The stability of the strait remains a paramount concern for global markets, as it serves as the primary conduit for a fifth of the world’s oil. Any confirmed disruption to South Korean shipping would further complicate international efforts to secure the vital trade route and stabilize surging energy prices.