 Russia amassed enough missiles to fire a barrage of at least 40 on Ukraine Monday. In Kyiv, a missile hit Ukraine's biggest children's hospital. Terrible scenes on the ground. Doctors pulling people from the rubble. Hundreds of severely ill children, including cancer patients, evacuated, now being treated on the street. This is one of the worst Russian attacks on the capital in months. At least two dozen people killed across Ukraine. ABC's Patrick Rievel. The NATO summit opens in Washington today. I should say Tuesday.