China said Monday it has detained a foreign national who was the head of an overseas consulting firm for allegedly spying on behalf of the United Kingdom, Report informs, citing CNN.

China’s civilian spy agency, the Ministry of State Security (MSS), said in a statement that it had apprehended an individual surnamed Huang working with Britain’s MI6 while leading a foreign consultancy.

The agency did not mention Huang’s full name, gender, or nationality, nor identify the company they worked at.

According to the MSS, Huang started working with MI6 in 2015 on intelligence matters, with the British agency directing Huang to travel to China multiple times to collect intelligence and identify potential assets for it.

MI6 provided Huang with training as well as professional spying equipment for the exchange of intelligence and communications, the MSS also claimed.

It alleged that Huang ended up providing Britain with 17 pieces of intelligence, including several “national secrets.”