Sitemap for region subdomain?

Question

Create a sitemap

There is a site created for him so far one subdomain for the city of Omsk, how best to create a sitemap for a subdomain? Create a new one and how to implement it or make changes to an existing sitemap

<?xml version="1.0" encoding="UTF-8"?>
<urlset
      xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9
            http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd">
    <url>
        <loc>
            http://medicrashodka.ru/meditsinskie-perchatki/diagnosticheskie-i-smotrovye-perchatki/nitrilovye-nesterilnye-neopudrenye-perchatki-ambulex-nitryl-mp0095
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>
            http://medicrashodka.ru/meditsinskie-perchatki/diagnosticheskie-i-smotrovye-perchatki/nitrilovye-nesterilnye-opudrenye-perchatki-ambulex-nitryl-mp0096
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>
            http://medicrashodka.ru/meditsinskie-perchatki/xirurgicheskie-perchatki/nesterilnye-opudrenye-anatomicheskie-xirurgicheskie-perchatki-mp0038
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
      
    <url>
        <loc>
            http://medicrashodka.ru/baxily/kupit-optom-deshevo-baxily-v-moskve-mp0404
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>
            http://medicrashodka.ru/baxily/netkanye-baxily-tsena-mp0405
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>
            http://medicrashodka.ru/baxily/baxily-s-kolcamimp-0406
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>
            http://medicrashodka.ru/baxily/baxily-v-moskve-tsena-mp0409
        </loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>
    <url>
        <loc>http://medicrashodka.ru/baxily/baxily-3-g-mp0410</loc>
        <changefreq>weekly</changefreq>
        <priority>1.0</priority>
    </url>

    <url>
        <loc>http://medicrashodka.ru/nizhnij-novogorod</loc>
        <changefreq>weekly</changefreq>
        <priority>0.5</priority>
    </url>
</urlset>

Answer 1

It is for Omsk that a separate sitemap is needed.