A Chinese ship searching for missing Malaysia Airlines Flight 370 has detected a “pulse” signal in the Indian Ocean, China’s state news agencies CCTV and Xinhua said Saturday.

China’s Haixun 01 marine surveillance ship detected signals with a frequency of 37.5 kHz per second, CCTV said in a tweet.

“Not proven to be linked to #MH370 yet,” the post said.

The frequency of 37.5 kHz per second is currently the international standard frequency for the underwater locator beacon on a plane’s “black box.”

Chinese media reported that the signal was detected at a latitude of 25 degrees south and a longitude of 101 degrees east. The signal reportedly lasted for a minute and a half.

China’s Haixun 01 is the command and coordination vessel for all Chinese ships involved in the search in this area.

A high-level U.S. government official told NBC News that the reports of the detected pulse had not yet been corroborated and therefore could not be verified.

The Boeing 777 airliner disappeared on March 8 with 239 people on board. Its planned route was from Malaysia’s capital Kuala Lumpur to Beijing, China.

Article Courtesy: Nbcnews.com