"Latvia's European priorities are also Germany's priorities," Roth said after talks in Riga with Foreign Minister Edgars Rinkēvičs.
Roth also stressed the need for a joint European Union approach to dealing with Russia.
"We need to speak with one voice," Roth said, while warning that "nothing can happen unless Russia is prepared to take a constructive position" and reassuring Latvia that Germany stood fully behind it as far as NATO's Article 5 commitment to mutual defense is concerned.
For his part, Rinkēvičs said the pair had discussed the possibility of the EU providing access to credible new news sources for Russian speakers.
"We are not talking about investing in counter-propaganda but credible news sources in the Russian language," Rinkēvičs said.