The already strained relationship between the United States and China is teetering on the edge again, this time over the South China Sea.

China claims it intercepted a US anti-submarine device in these disputed waters on Wednesday, June 26. The incident, trumpeted solely by Chinese state media, raises eyebrows about what exactly the US is up to in this strategically vital and hotly contested area.

Unidentified Objects Dropped, Tensions Rise

China Central Television (CCTV) and affiliated social media accounts allege that US military aircraft were observed hovering near the Second Thomas Shoal, a contested territory claimed by both China and the Philippines.

The reports claim the aircraft dropped “unidentified electronic items” before departing.

The Chinese Coast Guard then reportedly retrieved one such item and, according to Chinese media, identified it as a submarine detection device.

While the US has yet to respond to these claims, Chinese media outlets quoted a maritime expert who stated the device could detect and counter signals from Chinese submarines.

“The device can be used to detect the signal of a Chinese submarine and to counter signals from submarine underwater,” a Chinese maritime expert told reporters.

Furthermore, video footage released by Chinese state media showed a close-up of the object with a label indicating “Ultra Electronics,” a British defense company that supplies equipment to the US military.