Sig Alert, 60 Freeway, Diamond Bar 4 a.m.

One person was killed in a crash on the eastbound 60 Freeway east of Grand Avenue. The CHP said a vehicle overturned and an oncoming car struck it. Victims in the 3:29 a.m. crash suffered major injuries and were taken to Pomona Valley Hospital Medical Center for treatment, officers said. The CHP issued a Sig Alert at 4 a.m. and closed all eastbound lanes except the slow lane. At 5:17 a.m. the three left lanes remained closed. The Sig Alert was canceled about 6:30 a.m.