The below is attributable to Spokesperson Matthew Miller:

Deputy Secretary of State Wendy Sherman spoke with Swiss State Secretary Livia Leu today.  Deputy Secretary Sherman and State Secretary Leu discussed the U.S.-Switzerland Strategic Partnership Dialogue, reaffirming the strong bilateral relationship between the United States and Switzerland.  The Deputy Secretary and State Secretary underscored our enduring support for Ukraine and commitment to regional stability and security.  Deputy Secretary Sherman thanked State Secretary Leu for her partnership in her current role and wished her well in her next diplomatic assignment.

Original source can be found here.