U.S. Secretary of State Marco Rubio held conversations with several European officials on Monday to talk about diplomatic initiatives aimed at ending the conflict in Ukraine, according to the State Department.

During these discussions, Rubio connected with the UK Foreign Secretary David Lammy, Ukrainian Foreign Minister Andrii Sybiha, Finnish Foreign Minister Elina Valtonen, and the EU’s foreign policy leader Kaja Kallas, among others, a spokesperson for the State Department shared in a statement.