WASHINGTON, D.C.(WNAX)- South Dakota Senator Mike Rounds is among the latest Americans included in personal bans by the Russian government.

He says he isn’t sure what brought that about.

Rounds says he has been working on cyber security changes aimed at Russian hackers.

Rounds says the bans on a number of Americans and allies are a reaction to sanctions Russia is facing.

Rounds has been a strong supporter of providing weapons and other military resources to Ukraine in their war with Russia.