At least 68 people, including 28 children, have been confirmed dead in Kerr County, Texas, following catastrophic flash flooding over the weekend, officials say.

The risk of life-threatening flooding is still high in central Texas with more rain on the way. The urgent search for the missing continues following a holiday weekend deluge that killed at least 82 people including children at summer camps.

Although Kerr County was hit hardest by flooding, at least seven others have been confirmed dead in different parts of Texas. About 150 miles east of Camp Mystic, Travis County has confirmed at least four deaths, county spokesperson Hector Nieto told CBS News by phone Saturday night. Travis County includes the Texas capital city of Austin.