Ships stranded in the Persian Gulf amid escalating tensions in the Middle East have reportedly begun disguising themselves as Chinese vessels in an attempt to avoid potential attacks.

Over the past week at least 10 ships altered their transponder signals, listing descriptions such as “Chinese owner,” “All Chinese crew,” or “Chinese crew onboard.” The tactic appears to be aimed at reducing the risk of being targeted as the regional security situation deteriorates, The Caspian Post reports via foreign media.

Currently, around 1,000 vessels worth roughly $25 billion are effectively stranded in and around the Persian Gulf. The escalating conflict has largely paralyzed maritime traffic through the Strait of Hormuz, a vital global corridor for oil and liquefied natural gas shipments from the Middle East.