LVIV, Ukraine: A first convoy of residents and foreign students has left the Ukrainian city of Sumy after an agreement with Russia on establishing a humanitarian corridor, officials said on Tuesday.

"We have already started the evacuation of civilians from Sumy to Poltava (in central Ukraine), including foreign students," the foreign ministry said in a tweet. "We call on Russia to agree on other humanitarian corridors in Ukraine."

(Reporting by Pavel Polityuk; writing by Matthias Williams, editing by Timothy Heritage)