Lucas Milanez

This plugin generates an XML sitemap to Google News (https://support.google.com/news/publisher/answer/74288?hl=pt-BR) according to the settings made on the panel
Some features:
<ul>
<li>Set default values on a dedicated settings page</li>
<li>Set genre, access, language on per article basis</li>
<li>Exclude articles from the sitemap</li>
<li>Ping Webmaster Tools when sitemap is updated</li>
</ul>
If you find a bug or you have a feature request, feel free to mail the developer.
You can use the built in installer and upgrade, or you can install the plugin 
manually.

Sitemap Google News

Automatically generates a Google News Sitemap using the Google News Sitemap specification.

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.

Sitemap Google News vs Google News Sitemap Feed With Multisite Support