timbrd

This plugin dynamically creates a feed that comply with the Google News Sitemap protocol. There are no options to neither be set nor file or dir access rights to be tampered with and the sitemap become instantly available. Google News Sitemap will be reachable at example.com/sitemap-news.xml (or example.com/?feed=sitemap-news), ready for indexing by Google News.
Compatible with WordPress MU
Compatible with caching plugins like Super Cache, W3 Total Cache and Quick Cache that cache feeds.
<h4>Credits</h4>
The plugin is based on XML Sitemap & Google News Sitemap Feeds plugin by RavanH (https://wordpress.org/extend/plugins/xml-sitemap-feed/). 
XML Sitemap Feed was originally based on the (discontinued?) plugin Standard XML Sitemap Generator by Patrick Chia.

Google News Sitemap Feed With Multisite Support

Dynamically generates a Google News Sitemap. Multisite compatible.

Justin Norton

This plugin provides a Google News XML Sitemap for WordPress that lists the most recent 1000 articles published in the past two days that are marked to be included in an auto-generated Google Sitemap News XML file in accordance with the standards detailed on the Creating a Google News sitemap page here: https://support.google.com/news/publisher/answer/74288?hl=en-GB
Created by Web Developer: Justin Norton – https://www.jnorton.co.uk
Sites using this plugin: 
http://startups.co.uk/sitemap-news.xml 
http://is4profit.com/sitemap-news.xml

XML News Sitemap

This plugin provides a highly-configurable Google News XML Sitemap for WordPress.

Google News Sitemap Feed With Multisite Support vs XML News Sitemap