According to Bill Gertz's report in Free Beacon, Russia conducted its fifth test of the Nudol ASAT interceptor, now designated PL-19, on December 16, 2016. The Pentagon believes that it was the third successful test of the system.

Previous successful tests of the interceptor took place in November 2015 and in May 2016. So far, the tests did not seem to include an actual or attempted intercept.

UPDATE: I missed what's probably the most important part of the test - the interceptor was launched "from a base in central Russia" and not from Plesetsk. Is that Kapustin Yar? I'm not sure it would qualify as "central Russia." But there are few other options.