A China-made drone has been found lying inside the high-security Bhopal Central Jail, prompting authorities to launch a probe into it, an official said on Thursday.

China called the United States "extremely irresponsible" for "groundlessly suspecting" there are information security risks in China's drone systems, its commerce ministry said on Tuesday.

The U.S. Commerce Department is evaluating new regulations that could limit or prohibit the use of Chinese-made drones, citing national security concerns. Public comments on the proposed rules are being accepted until March 4,