Seoul: South Korea is verifying reports of a possible attack on a South Korean vessel in the Strait of Hormuz, officials said Monday. "The consular affairs bureau is verifying information that a South Korean vessel came under attack. We have preliminarily confirmed that there are no casualties among our nationals," a foreign ministry official said. The ministry is also working to determine the extent of the damage to the vessel and identify those responsible, he added. According to Yonhap News Agency, if confirmed, it would mark the first attack on a South Korean-flagged vessel stranded in the strait since the key waterway was effectively shut down in late February following U.S.-Israeli strikes on Iran that triggered the regional crisis. About 2,000 vessels remain stranded in the strait, including 26 South Korean-flagged ships. The incident took place after Washington launched an operation dubbed "Project Freedom," aimed at freeing the ships stranded in the narrow waterway, while Iran denounced the move as a violation of the ceasefire. Trump extended a ceasefire deadline in early April, urging Iran to present a new peace proposal, while ramping up pressure on Tehran through naval blockades and economic sanctions. Peace talks remain stalled after the first direct meeting between the two sides in Islamabad, Pakistan, last month ended without agreement. The blockade of the waterway has disrupted global supplies of energy and other goods, as about 20 percent of the world's oil and natural gas trade typically passes through the strait.