Kerry and Lavrov discuss the situation in eastern Ukraine in 230 phone conversations . U.S. ambassador tweets pictures he says show Russian buildup . `` We are always vigilant , '' Interior Secretary Chuck Hagel says of Ukraine 's moves . Russia 's acting interior minister says unrest in eastern region will be resolved in early Wednesday morning .
Kerry and Lavrov discuss the situation in eastern Ukraine in two phone conversations . U.S. ambassador tweets pictures he says show Russian buildup . `` We are always vigilant , '' Defense Secretary Chuck Hagel says of Russia 's moves . Ukraine 's acting interior minister says unrest in eastern region will be resolved in 48 hours .