Kerry warns Ukraine that sanctions could be increased . ` ` As a result of what 's going on in Ukraine , '' U.S. troops add drills in Ukraine . Acting President Oleksandr Turchynov calls for renewal of anti - terror measures . VP Joe Biden tells Ukraine that the United States has his country 's support .
Kerry warns Lavrov that sanctions could be increased . `` As a result of what 's going on in Ukraine , '' U.S. troops add drills in Europe . Acting President Oleksandr Turchynov calls for renewal of anti-terror measures . VP Joe Biden tells Ukraine PM the United States has his country 's back .