Hurricane Harvey Death Toll Bumps Up To At Least 63

There are now at least 63 deaths related to Hurricane Harvey after it dumped several feet of rain on southeast Texas in a matter of days, CBS News confirmed Monday.

CBS News also confirmed that Harris County -- which is home to Houston and saw the worst flooding during Harvey -- has the highest death toll with 30 Harvey-related deaths.

Many of those deaths confirmed in 11 Texas counties happened when people were caught in quickly rising floodwaters or lost control on water-logged roads, emergency management officials said. Six family members including four children were killed when a van they were riding in was swept into a bayou as floodwaters rose in Harris County.

But county emergency management departments tell The Associated Press they are including people in their storm-related death totals who died from indirect complications of Harvey.

The huge dump of water loosened the ground around trees that have fallen into at least two homes in Montgomery County, causing two deaths, said county emergency management spokeswoman Cynthia Jamieson. And the Texas Department of Public Safety confirmed that a couple had died while driving outside of Jasper, Texas, when a tree landed on their vehicle.

Power outages from the storm have also accounted for some of the indirect deaths. Several elderly people in a handful of counties were reported as Harvey-related deaths when medical equipment such as oxygen tanks lost power.

Officials said floodwaters have caused delays in responses to medical emergencies that resulted in deaths as well, including the first death reported in the storm -- a man who died in a fire in Aransas County. Another person died of a heart attack Sunday in Montgomery County, as rescue workers were delayed in getting to his address by road and flood conditions left by Harvey's massive rainfall.

The Associated Press contributed to this report.