(CNN)Secretary of State Mike Pompeo on Friday highlighted US commitment to security assistance and diplomacy with Ukraine -- two matters that have been called into question by facts that have come to light throughout the impeachment process that continues to play out in Washington.

Speaking alongside Ukrainian President Volodymyr Zelensky in Kiev, the top US diplomat also said that a visit to Washington for the Ukrainian President was not conditioned on Ukraine launching an investigation into Hunter Biden or his involvement with the Ukrainian energy company Burisma. However, Pompeo did not commit to any specific time frame for that visit to occur.

"There's no condition of the nature that you described for President Zelensky to come to Washington and have that visit," Pompeo said. "It's just simply not the case."

"President Zelensky will be welcome to come to Washington when we have an opportunity to do good things for both the Ukrainian people and the American people. We'll get it done. I'm confident of that," Pompeo added.