Speaking on a visit to Kyiv, U.S. Vice President Joe Biden said that the United States stands ready to help Ukraine's economy but that more must be done to fight the "cancer" of corruption, RFE/RL reports.
Biden said the United States are ready to assist Ukraine, which he said faces "humiliating threats" and "very daunting problems," in seizing a chance to create national unity and energy independence.
"Road ahead is difficult, but that you will not walk this road alone. We will walk it with you"- he added. 

He stressed that Washington will never recognize Russia's "illegal occupation of Crimea and neither will the world." He also warned that no nation should stoke instability in its neighborhood.

Mr. Biden arrived in Kyiv with two-day visit to meet with Ukrainian leadership. He is also to announce package of technical assistance to Ukraine.

Crimean Tatar leader Mustafa Jemilev left Crimea for Kyiv to meet with Mr. Biden.