Estonian Prime Minister Kaja Kallas has urged Schengen countries to stop issuing tourist visas to Russian citizens.

Kaja Kallas, Estonia’s first-ever female prime minister, submitted her resignation to President Alar Karis on Friday. The move is part of a month-long effort to put together a new coalition government, after Kallas lost the support of her erstwhile junior partner and with it the parliamentary majority. A new cabinet will include three parties and, once it’s finalized, the Riigikogu is expected to approve Kallas as the PM again.