“Any involvement with military and weapon manufacturing impacts our position as leaders in ethical and responsible AI, and goes against our mission statement and stated AI Principles,” the letter that circulated inside Google DeepMind says.

As Time reports, the letter from DeepMind staff urges leadership to investigate claims that Google cloud services are being used by militaries and weapons manufacturers, to cut off military access to DeepMind’s technology, and to establish a new governance body to prevent future use of the AI by military clients.

Time reports that despite employee concerns and calls for action, there has been “no meaningful response” from Google so far.