Roundup: Heat wave scorches U.S., bringing record-breaking temperatures

LOS ANGELES, June 22 (Xinhua) -- An intensive heat wave continued to grip much of the United States this weekend, triggering record-breaking temperatures and placing millions of people under heat alerts.

"A heat wave will continue over much of the eastern U.S. south of a quasi-stationary boundary," the Weather Prediction Center (WPC) said on Saturday.

"These temperatures remain the most anomalous and dang