Google has resolved the issue with Google News indexing that caused a significant decline in traffic for publishers for three weeks starting in late June. The company discovered the issue on July 10th and implemented a fix on July 12th. Google has confirmed that publishers should now see their traffic return to normal levels. If your website is included in Google News and you experienced a drop in traffic, it is likely related to this bug, which has now been fixed.

source: Google fixes Google News indexing bug