Its two or more NPR's fighting. It will probably go away. Sometimes it doesnt. Sometimes two ships, one from NPR A, the other from NPR B will end up crippled but within detection range of each other. Since they never stop detecting each other, the NPR's never run anything faster than 5 second intervals.
This is pretty rare, so you should give it quite some time before you decide there's a problem. 200 * 5 seconds is only 1000 seconds, a little less than 20 minutes. Battles can last longer than that and still be resolved eventually.