The Viktor Leonov has been spotted off the coast of South Carolina and Florida, participating in what two U.S. officials are calling an unsafe manner. The spy-ship was operating at night without any running lights, refused to respond to communications, and was seen performing erratic dodging movements in the water. A spokesperson for the Coast Guard commented that the Coast Guard was on top of the information and had been alerting other mariners in the area of the situation.
Source: https://www.cnn.com