BY A STAFF REPORTER: Air raid sirens sounded in Kyiv on Friday morning as EU leaders are expected to hold a summit with President Volodymyr Zelensky in the Ukrainian capital. European leaders plan to discuss additional financial and military support for Ukraine to fight Russia's invasion. On Thursday, Zelensky said he had productive talks with the commission leader, Ursula von der Leyen, and members of the College of the European Commission.